Maximum deviation in the width of the tapes with a thickness

up to 1.00 per key.

St. 1.00

normal manufacturing accuracy

increased manufacturing precision

normal manufacturing accuracy

increased manufacturing precision

10, 12, 15, 18, 20, 22, 25, 28, 30, 35, 40, 45, 50, 60, 80, 90, 100, 120, 150

180, 200, 220, 250, 280

300, 350, 400, 500, 600

Ribbon Status

Thickness, mm

Width, mm

L90, L85, L80, L68, L63

Solid

0,10 - 0,12

10 - 300

soft, semi-hard, hard

0,14 - 0,20

0,22 - 0,45

0,50 - 2,00

10 - 300

10 - 600

20 - 600

L68

Solid

0,05 - 0,09

10 - 180

Particularly hardening

0,10 - 0,20

0,22 - 0,45

0,55 - 1,00

10 - 300

10 - 600

20 - 600

L63

Particularly hardening

0,05 - 0,09

0,10 - 0,20

0,22 - 0,45

0,50 - 2,00

10 - 180

10 - 300

10 - 600

20 - 600

spring hard

0,10 - 0,20

0,22 - 0,45

0,50 - 1,00

10 - 300

10 - 600

20 - 600

LS59-1

Soft

0,14 - 0,40

0,45 - 1,40

1,50 - 2,00

10 - 180

20 - 280

20 - 180

Solid

0,10 - 0,40

0,45 - 1,40

1,50 - 2,00

10 - 180

20 - 280

20 - 180

Particularly hardening

0,35 - 1,20

20 - 280

LMts58-2

Soft

0,14 - 0,40

0,45 - 1,40

1,50 - 2,00

10 - 180

20 - 280

20 - 280

Semi-hard

0,14 - 0,40

0,45 - 1,40

10 - 180

20 - 280

Solid

0,10 - 0,40

0,45 - 1,40

1,50 - 2,00

10 - 180

20 - 280

20 - 180

Ribbon Status

Tensile strength σ in, MPa (kgf / mm 2)

Relative elongation δ,%, not less

L90

Soft

Semi-hard

Solid

230 to 370 (24 to 38)

290 to 400 (30 to 41)

At least 350 (at least 36)

L85

Soft

Semi-hard

Solid

250 to 360 (26 to 37)

320 to 430 (33 to 44)

At least 390 (at least 40)

L80

Soft

Semi-hard

Solid

260 to 370 (27 to 38)

330 to 430 (34 to 44)

At least 390 (at least 40)

L68

Soft

Semi-hard

Solid

Particularly hardening

280 to 390 (29 to 40)

340 to 470 (35 to 48)

430 to 540 (44 to 55)

At least 520 (at least 53)

L63

Soft

Semi-hard

Solid

Particularly hardening

spring hard

290 to 410 (30 to 42)

340 to 470 (35 to 48)

410 to 570 (42 to 58)

510 to 640 (52 to 65)

At least 610 (at least 62)

LS59-1

Soft

Solid

Particularly hardening

340 to 490 (35 to 50)

460 to 640 (47 to 65)

At least 590 (at least 60)

LMts58-2

Soft

Semi-hard

Solid

380 to 490 (39 to 50)

420 to 590 (43 to 60)

At least 570 (at least 58)

Ribbon Status

Depth of extrusion at belt thickness

0,10 - 0,28

0,30 - 0,50

0,55

0,60 - 1,10

1,20 - 1,60

1,70 - 2,00

L90

Soft

At least 7

At least 7

Solid

2,5 - 5,5

4,0 - 7,0

L80

Soft

At least 8

L68

Soft

At least 8

At least 10

Not less than 11.0

At least 11.5

Not less than 12.0

Not less than 12.5

Semi-hard

7 - 9

7,5 - 10

9 - 11

9 - 11

10 - 12

10,5 - 12,5

Solid

5 - 7

5 - 7,5

L63

Soft

Not less than 7.5

At least 9.5

At least 9.5

Not less than 10.0

At least 10.5

Not less than 11.0

Semi-hard

5,5 - 7,5

6 - 9,5

6 - 9,5

7 - 10

8,5 - 10,5

9 - 11

Solid

2,5 - 5,5

5,0 - 7,5

Particularly hardening

2,0 - 4,5

Ribbon Status

Depth of extrusion at belt thickness

0,30 - 0,50

0,55

0,60 - 1,10

L68

Semi-hard

9 - 11

9 - 11

9,5 - 11,5

Solid

7 - 9

L63

Semi-hard

7,5 - 9,5

7,5 - 9,5

8 - 10

Number of controlled rolls

2 - 8

9 - 15

16 - 25

26 - 50

51 - 90

91 - 150

151 - 280

28 1 - 500

501 - 1200

Number of controlled points in a roll, pcs.

Rejection number

From 5 to 7 incl.

St. 7 » 12 »

» 12 » 75 »

» 75 » 140 »

» 140 » 250 »

» 250 » 600 »

» 600 » 1600 »

Number of controlled rolls, pcs.

Rejection number

2 - 8

9 - 15

16 - 25

26 - 50

51 - 90

91 - 150

151 - 280

281 - 500

501 - 1200

Tape thickness, mm

Theoretical weight 1 m 2 tapes, kg, made of brass grades

Tape thickness, mm

Theoretical weight 1 m 2 tapes, kg, made of brass grades

L90, L85, L80

L68, L63, LS59-1, LMts58-2

L90, L85, L80

L68, L63, LS59-1, LMts58-2

0,05

0,44

0,43

0,60

5,22

5,10

0,06

0,52

0,51

0,65

5,66

5,53

0,07

0,61

0,60

0,70

6,09

5,95

0,08

0,70

0,68

0,75

6,53

6,38

0,09

0,78

0,77

0,80

6,96

6,80

GOST 2208-91

Group B54

INTERSTATE STANDARD

BRASS TAPES FOR GENERAL PURPOSE

Specifications

Brass strips for general use. Specifications

ISS 77.150.30
OKP 18 4530

Introduction date 1992-07-01

INFORMATION DATA

1. DEVELOPED AND INTRODUCED by the Ministry of Metallurgy of the USSR

2. APPROVED AND INTRODUCED BY Decree of the USSR State Committee for Product Quality Management and Standards dated 07.06.91 N 838

Change No. 1 was adopted by the Interstate Council for Standardization, Metrology and Certification (minutes No. 2 dated March 5, 2002, by correspondence)

3. REPLACE GOST 2208-75

4. REFERENCE REGULATIONS AND TECHNICAL DOCUMENTS

5. EDITION (November 2003) with Amendment No. 1 adopted in May 2002 (IUS 8-2002), Amendment (IUS 9-98)

This standard applies to brass bands used in various industries. The standard does not apply to radiator tapes up to 0.25 mm thick.

The requirements of paragraphs 1.1, 1.2, 1.3.1, 1.4, 1.5, sections 2, 3 and 4 are mandatory, other requirements are recommended.

1. TECHNICAL REQUIREMENTS

1. TECHNICAL REQUIREMENTS

1.1. Tapes are manufactured in accordance with the requirements of this standard according to the technological regulations approved in the prescribed manner, from brass grades L90, L85, L80, L68, L63, LS59-1, LMts58-2 with a chemical composition in accordance with GOST 15527 *.
_________________
* GOST 15527-2004 applies, hereinafter in the text. - Note.

1.2. Main parameters and dimensions

1.2.1. The thickness of the tapes and the maximum deviations in thickness, depending on the width, must correspond to those given in Table 1.

Table 1

Note. The theoretical weight of the tapes is given in Appendix 1.

1.2.2. The width of the tapes and the maximum deviations in width, depending on the thickness, must correspond to those given in Table 2.

table 2

1.2.3. The length of the tapes, depending on the thickness, should correspond to those given in Table 3.

Table 3

Note. Not more than 5% of tapes of shorter length, but not less than 5 m, are allowed in a batch.

The symbols of the tapes are affixed according to the scheme:

With the following abbreviations:

Examples of symbols:

Tape of normal manufacturing accuracy in thickness and increased accuracy in width, semi-solid, 0.50 mm thick, 450 mm wide, made of L85 brass:

Tape DPRKP 0.50x450 ND L85 GOST 2208-91

The same, increased manufacturing accuracy in thickness and width, solid, 0.30 mm thick, 200 mm wide, made of L68 brass, for stamping:

Tape DPRPT 0.30x200 ND L68 PC GOST 2208-91

The same, of normal manufacturing accuracy in thickness and width, semi-solid, 0.35 mm thick, 100 mm wide, made of brass grade L63, with a normalized extrusion depth:

Tape DPRNP 0.35x100 ND L63 GV GOST 2208-91

(Changed edition, Rev. N 1).

1.3. Characteristics

1.3.1. Mandatory execution

1.3.1.1. The dimensions of the tapes, depending on the state of the material and the brand of brass, must correspond to those given in Table 4.

Table 4

1.3.1.2. The surface of the tapes must be clean, i.e. free from contaminants that hinder inspection. Separate surface defects are allowed that do not lead the tape during the control stripping beyond the maximum deviations in thickness, tint colors, local redness, slight darkening, as well as traces of technological lubricant on solid tapes and traces of unburned technological lubricant on annealed tapes.

1.3.1.3. Tapes should be evenly cut and should not have significant (according to GOST 15467) burrs and warping. Wavy and torn edges are not allowed. Slight waviness is allowed, disappearing at the control bend.

Separate nicks are allowed at the ends of the rolls, which do not prevent the unwinding of the roll and do not lead the tape beyond the maximum deviations in width.

The crescent of the tapes should not exceed: with a width of up to 100 mm inclusive - 4 mm per 1 m of length, with a width of more than 100 mm - 3 mm per 1 m of length.

The deflection should not exceed 1 mm for tapes with a width of 10 to 100 mm and 1 mm for every 100 mm of width for tapes over 100 mm wide.

1.3.1.4. The mechanical properties of the tapes, depending on the state and brand of brass, must correspond to those indicated in Table 5.

Table 5

Notes:

1. The upper limit of tensile strength may be higher, but not more than 20 MPa (2 kgf/mm) while maintaining the minimum relative elongation or extrusion depth.

2. Tensile strength is determined for tapes with a thickness of 0.3 mm or more, relative elongation - for tapes with a thickness of 0.5 mm or more. Mechanical properties for tapes less than 0.3 mm thick are reference.

3. Hardness values ​​are given in Appendix 2.

(Amendment).

1.3.2. Execution at the request of the consumer

1.3.2.1. Tapes with a thickness of 0.5 to 1.2 mm are produced with a width of 15 mm.

1.3.2.2. Tapes are made in widths 14, 16, 17, 21, 23, 24, 26, 27, 31, 32, 33, 34, 36, 37, 38, 41, 42, 43, 44, 46, 47, 48, 52, 54 , 55, 58, 62, 63, 64, 65, 68, 70, 74, 75, 78, 85, 86, 87, 88, 89, 91, 92, 93, 95, 98, 102, 103, 105, 110 , 112, 114, 116, 118, 119, 123, 125, 128, 130, 136, 140, 145, 147, 164, 168, 170, 175, 185, 187, 190, 196, 205, 210, 212, 213 , 216, 225, 226, 230, 240, 255, 260, 263, 270, 290, 305, 320, 335, 345, 360, 365, 380, 390, 415 (mm) with tolerances for the next larger size given in table 2.

Tapes of the indicated widths are produced if the mass of the batch is at least 5 tons.

1.3.2.3. Tapes up to 100 mm wide inclusive are manufactured with increased accuracy in crescent not more than 3 mm per 1 m of length.

1.3.2.4. The extrusion depth for tapes with a thickness of 0.1 mm or more when testing for drawing a spherical hole with a punch with a radius of 10 mm must correspond to that indicated in Table 6.

page 1

page 2

page 3

page 4

page 5

page 6

page 7

page 8

page 9

page 10

page 11

page 12

page 13

page 14

page 15

INTERSTATE STANDARD

BRASS TAPES
GENERAL PURPOSE

TECHNICAL CONDITIONS

IPK STANDARDS PUBLISHING HOUSE

INTERSTATE STANDARD

Date of introduction 01.07.92

This standard applies to brass bands used in various industries. The standard does not apply to radiator tapes up to 0.25 mm thick.

The requirements of para. 1.1, 1.2, 1.3.1, 1.4, 1.5, sec. 2, 3 and 4 are mandatory, other requirements are recommended.

1. TECHNICAL REQUIREMENTS

1.1. Tapes are manufactured in accordance with the requirements of this standard according to the technological regulations approved in the prescribed manner, from brass grades L90, L85, L80, L68, L63, LS59-1, LMts58-2 with a chemical composition in accordance with GOST 15527.

1.2. Main parameters and dimensions

1.2.1. The thickness of the tapes and the maximum deviations in thickness, depending on the width, must correspond to those given in table. one.

Table 1

Note. The theoretical weight of the tapes is given in Appendix 1.

1.2.2. The width of the tapes and the maximum deviations in width, depending on the thickness, must correspond to those given in Table. 2.

table 2

1.2.3. The length of the tapes, depending on the thickness, must correspond to those given in Table. 3.

Table 3

Note. Not more than 5% of tapes of shorter length, but not less than 5 m, are allowed in a batch.

The symbols of the tapes are affixed according to the scheme:

with the following abbreviations:

Preparation method:

cold-formed (cold-rolled) - D;

Section shape:

rectangular - PR;

Manufacturing accuracy:

normal thickness and width accuracy - H,

normal accuracy in thickness and increased accuracy in width - K,

increased accuracy in thickness and normal accuracy in width - I,

increased accuracy in thickness and width - P,

normal thickness accuracy and high width accuracy - P,

increased accuracy in thickness and high accuracy in width - L,

high accuracy in thickness and normal accuracy in width - Z,

high accuracy in thickness and increased accuracy in width - C,

high accuracy in thickness and width - B;

State:

soft - M,

semi-solid - P;

hard - T,

especially hard - Oh,

spring-hard - F;

random - ND;

Special execution conditions:

for stamping - PC,

antimagnetic - AM,

increased accuracy in sickle shape - PS,

with a normalized extrusion depth - GV,

withstanding bending tests - IG.

Examples of symbols:

Tape of normal manufacturing accuracy in thickness and increased accuracy in width, semi-solid, 0.50 mm thick, 450 mm wide, made of L85 brass:

Ribbon DPRKP 0 ,50 ´ 450 ND L85 GOST 2208 -91

The same, increased manufacturing accuracy in thickness and width, solid, 0.30 mm thick, 200 mm wide, made of L68 brass, for stamping:

Ribbon DPRPT 0 ,30 ´ 200 ND L68 PCS GOST 2208 -91

The same, of normal manufacturing accuracy in thickness and width, semi-solid, 0.35 mm thick, 100 mm wide, made of brass grade L63, with a normalized extrusion depth:

Ribbon DPRNP 0 ,35 ´ 100 ND L63 GW GOST 2208 -91

1.3. Characteristics

1.3.1. Mandatory execution

1.3.1.1. The dimensions of the tapes, depending on the state of the material and the brand of brass, must correspond to those given in Table. 4.

Table 4

1.3.1.2. The surface of the tapes must be clean, i.e. free from contaminants that hinder inspection. Separate surface defects are allowed that do not lead the tape during the control stripping beyond the maximum deviations in thickness, tint colors, local redness, slight darkening, as well as traces of technological lubricant on solid tapes and traces of unburned technological lubricant on annealed tapes.

1.3.1.3. Tapes should be evenly cut and should not have significant (according to GOST 15467) burrs and warping. Wavy and torn edges are not allowed. Slight waviness is allowed, disappearing at the control bend.

Separate nicks are allowed at the ends of the rolls, which do not prevent the unwinding of the roll and do not lead the tape beyond the maximum deviations in width.

The crescent of the tapes should not exceed: with a width of up to 100 mm inclusive - 4 mm per 1 m of length, with a width of more than 100 mm - 3 mm per 1 m of length.

The deflection should not exceed 1 mm for tapes with a width of 10 to 100 mm and 1 mm for every 100 mm of width for tapes over 100 mm wide.

1.3.1.4. The mechanical properties of the tapes, depending on the state and brand of brass, must correspond to those indicated in Table. 5.

Table 5

Notes:

1. The upper limit of tensile strength can be higher, but not more than 20 MPa (2 kgf / mm 2) while maintaining the minimum relative elongation or extrusion depth.

2. Tensile strength is determined for tapes with a thickness of 0.3 mm or more, relative elongation - for tapes with a thickness of 0.5 mm or more. Mechanical properties for tapes less than 0.3 mm thick are reference.

3. Hardness values ​​are given in Appendix 2.

(Amendment).

1.3.2. Execution at the request of the consumer

1.3.2.1. Tapes with a thickness of 0.5 to 1.2 mm are produced with a width of 15 mm.

1.3.2.2. Tapes are made in widths 14, 16, 17, 21, 23, 24, 26, 27, 31, 32, 33, 34, 36, 37, 38, 41, 42, 43, 44, 46, 47, 48, 52, 54 , 55, 58, 62, 63, 64, 65, 68, 70, 74, 75, 78, 85, 86, 87, 88, 89, 91, 92, 93, 95, 98, 102, 103, 105, 110 , 112, 114, 116, 118, 119, 123, 125, 128, 130, 136, 140, 145, 147, 164, 168, 170, 175, 185, 187, 190, 196, 205, 210, 212, 213 , 216, 225, 226, 230, 240, 255, 260, 263, 270, 290, 305, 320, 335, 345, 360, 365, 380, 390, 415 (mm) with tolerances for the next larger size given in table. 2.

Tapes of the indicated widths are produced if the mass of the batch is at least 5 tons.

1.3.2.3. Tapes up to 100 mm wide inclusive are manufactured with increased accuracy in crescent not more than 3 mm per 1 m of length.

1.3.2.4. The extrusion depth for tapes with a thickness of 0.1 mm or more when testing for drawing a spherical hole with a punch with a radius of 10 mm must correspond to that indicated in Table. 6.

Table 6

1.3.2.5. Tapes for stamping with a thickness of 0.30 - 1.10 mm from brass grades L63 and L68 in semi-solid and solid states are made with an extrusion depth in accordance with Table. 7. Tensile strength and relative elongation are not determined in this case.

Table 7

1.3.2.6. Tapes are made antimagnetic in accordance with GOST 15527.

1.3.2.7. It is allowed to establish requirements for the surface according to samples approved in the prescribed manner.

1.3.2.8. Soft and semi-hard tapes made of brass grade LMts58-2 with a thickness of 0.50 mm or more must withstand the bending test without the appearance of tears and cracks.

1.3.3. Execution by agreement between the manufacturer and the consumer

1.3.3.1. Tapes with a thickness of 0.10 - 0.20 mm are made with a width of more than 300 mm with maximum deviations in accordance with table. one.

1.3.3.2. Tapes with a thickness of 0.10 - 0.12 mm with limit deviations in accordance with the table. 1 is made in soft and semi-hard states.

1.3.3.3. Tapes are made in intermediate sizes in thickness and width with maximum deviations for the next larger size, given in table. 1 and 2.

1.3.3.4. Tapes with a thickness of 0.25 mm or more are manufactured with high accuracy in thickness with limit deviations 0.01 mm less than the limit deviations for tapes of increased accuracy.

1.3.3.5. Tapes are made in the width given in paragraph 1.3.2.2. Tapes of the indicated widths are produced if the mass of the batch is less than 5 tons.

1.3.3.6. Tapes are made with high accuracy in width. Limit deviations in width are set by agreement between the manufacturer and the consumer.

1.3.3.7. Tapes are made with a length exceeding that given in clause 1.2.3. At the same time, the maximum deviations in thickness and width and the requirements for surface quality are set by agreement between the manufacturer and the consumer.

1.3.3.8. It is allowed to set additional indicators of mechanical properties. In this case, the norms of temporary resistance, relative elongation and extrusion depth are set by agreement between the manufacturer and the consumer.

1.3.3.9. Tapes less than 0.30 mm thick are manufactured with regulated mechanical properties.

1.3.3.10. Soft tapes with a thickness of 1.0 - 1.5 mm made of L63 brand brass are manufactured with a regulated extrusion depth. The extrusion depth standards are set by agreement between the manufacturer and the consumer. In this case, the tensile strength and relative elongation are not determined.

1.3.3.11. Soft tapes are produced with a regulated grain size.

1.3.3.12. It is allowed to produce extra-hard tapes from L63 brand brass with a relative elongation of at least 3%.

1.3.3.13. Tapes made of brass grades and states not listed in Table. 6 are manufactured with a regulated extrusion depth.

1.3.3.14. It is allowed to set standards for the depth of extrusion when testing with a punch with a radius of 1.5; 4 and 7.5 mm.

1.3.3.15. The upper and lower limits of the extrusion depth may differ from those given in Table. 6 no more than ±0.5 mm. In this case, the tensile strength and relative elongation must correspond to those given in table. 5.

(Revised edition, Rev. No. 1).

1.3.3.16. Soft tapes with a thickness of 0.80 - 1.20 mm, a width of 100 - 400 mm made of brass grades L63 and L68, intended for deep drawing, are made with a relative elongation of at least 50% (tensile strength in this case is not determined) and a grain size of 0.015 - 0.040 mm.

The tensile test of such tapes is carried out on agreed samples. The crescent of these tapes is allowed no more than 1.5 mm per 1 m of length.

(Introduced additionally, Rev. No. 1).

1.4. Marking

1.4.1. Each roll must be affixed with a label stating:

conditional designation of the tape;

batch number.

In addition, the stamp of the technical control or the number of the technical inspector must be applied to the end of the roll or on the label.

1.4.2. Transport marking - in accordance with GOST 14192 with the application of manipulation signs "Protect from moisture", "Top".

(Revised edition, Rev. No. 1).

1.5. Package

1.5.1. Tapes should be rolled up. Recommended Sizes inner diameters rolls: 40, 50, 60, 75, 100, 120, 150, 200, 250, 300, 320, 400, 500 mm. The specific diameter is set by agreement between the manufacturer and the consumer.

Winding should exclude the change in the shape of the roll under the action of gravity.

Rolls of tapes with a thickness of up to 0.80 mm inclusive must be tied with a tape with dimensions of at least 0.2x15 mm in accordance with GOST 3560 or this standard or with a wire with a diameter of at least 1 mm in accordance with GOST 3282, packed in dense wooden boxes of types I, II, III according to GOST 2991 and lined with wood shavings or other materials that protect the tapes from damage. The sizes of boxes - in accordance with GOST 21140 or NTD.

It is allowed, by agreement between the manufacturer and the consumer, to pack rolls of tapes with a thickness of more than 0.60 to 0.80 mm in non-woven material without packing in boxes.

Rolls of tapes with a thickness of more than 0.80 mm must be tied with tape with dimensions of at least 0.2x15 mm according to GOST 3560 or according to this standard or wire with a diameter of at least 1 mm according to GOST 3282 and wrapped in paper according to GOST 8273 or non-woven material, or in other types of packaging materials that ensure the safety of products, with the exception of linen and cotton fabrics.

Rolls of tapes are wrapped in a spiral wrapping material in one layer with an overlap of one third. The end is fixed with steel wire in one girth. Fastening the ends of the wire - twisting at least three turns.

1.5.2. It is allowed when transporting in universal or specialized containers, covered vehicles and wagons to one address without reloading on the way, do not pack tapes in boxes or fabric.

The tapes must be laid and reinforced so that they do not move inside the container, motor vehicle or wagon during transportation.

1.5.3. Packing of tapes in the regions of the Far North and areas equated to them - according to GOST 15846, group "Metals and metal products".

2. ACCEPTANCE

2.1. Tapes are accepted in batches. The batch must consist of strips of the same brand of brass, of the same size, of the same material condition, of the same workmanship. The batch must be issued with one quality document containing:

trademark or name and trademark of the manufacturer;

conditional designation of the tape;

test results (at the request of the consumer);

lot number;

the mass of the party;

number of rolls (at the request of the consumer).

It is allowed to draw up one quality document for several batches of tapes of the same size, one material condition, one manufacturing accuracy, one brand of brass shipped to one consumer, indicating batch numbers.

2.2. To control the size, appearance, crescent and deflection, rolls are selected from the batch "blindly" (by the method of greatest objectivity) according to GOST 18321.

2.3. The number of tape rolls selected for thickness control is determined in accordance with Table. eight.

Table 8

The number of control points in each selected roll is determined depending on the length of the tape in the roll in accordance with the table. nine.

Table 9

The selected tape roll is considered valid if the number of measurement results that do not meet the requirements of Table. 1, less than the rejection number given in table. 9, one or more.

If unsatisfactory measurement results are obtained on at least one of the controlled rolls, the batch is rejected.

It is allowed for the manufacturer to carry out thickness control during the production process.

2.4. To control the width, appearance, crescent and deflection, rolls are selected from the batch in accordance with Table. ten.

Table 10

A batch is considered valid if the number of rolls that do not meet the requirements of Table. 2, pp. 1.3, 1.2, 1.3.1.3, less than the rejection number given in Table. ten.

It is allowed for the manufacturer to control each roll of the lot.

2.5. For tensile testing, drawing a spherical hole, bending and to determine the size of the grain, three rolls are taken from the batch from each full and incomplete 1000 kg.

In the production of enlarged rolls by welding, it is allowed for the manufacturer to test for tension, drawing a spherical hole, deflection and to determine the grain size from a batch, select three rolls from each full and incomplete 3000 kg of the batch.

2.6. The chemical composition of the tapes is determined on two rolls taken from the batch. It is allowed at the manufacturing plant to carry out sampling from molten metal.

2.7. Upon receipt of unsatisfactory test results for at least one of the indicators according to paragraphs. 2.5 and 2.6 it is retested on a double sample taken from the same lot. The results of the repeated test shall be applied to the entire batch.

3. CONTROL METHODS

3.1. The control of dimensions, appearance, crescent and deflection is carried out with a given probability of 96% (acceptance level of defectiveness AQL = 4 %).

3.2. The appearance of the tapes is checked by inspection without the use of magnifying devices.

3.3. The thickness of the tapes is measured with a micrometer according to GOST 6507 or a lever micrometer according to GOST 4381.

Measurement of the tape thickness is carried out at a distance of at least 100 mm from the end and at least 10 mm from the edge. For tapes with a width of 20 mm or less, the measurement is carried out in the middle.

The thickness of the tape is measured on each selected roll at points spaced evenly randomly along the length of the roll.

Tape length ( L) in meters is calculated by the formula

where D and d- respectively, the outer and inner diameters of the roll, measured with a ruler in accordance with GOST 427, mm;

a- tape thickness, mm.

The results of measuring the thickness of the tape that do not meet the requirements of table. 1, should not differ from those allowed by more than half of the tolerance field.

(Revised edition, Rev. No. 1).

3.4. The width of the tape is measured with a caliper according to GOST 166.

The measurement is carried out in one place at a distance of at least 100 mm from the end.

3.5. The crescent of the tape is measured according to GOST 26877 in one place on any part of the roll.

3.6. Tape deflection is measured according to GOST 26877 in one place on any section of the roll at a distance of at least 100 mm from the end.

3.7. For tensile testing, one sample is cut from each selected roll. Sampling for tensile testing is carried out according to GOST 24047.

The tensile test of tapes is carried out according to GOST 11701 on samples of type I and II with l 0 = 11.3 and b 0 = 20 mm. The tensile test of tapes with a width of less than 20 mm is carried out on samples with a width equal to the width of the tape, while the edges of the samples can be machined.

3.8. To test the drawing of a spherical hole, one sample is cut from each selected roll. The test is carried out according to GOST 10510.

It is allowed to test the drawing of a spherical hole on machines in manual mode.

It is allowed at the manufacturer to carry out a test for drawing a spherical hole for tapes with a width of less than 90 mm on samples before cutting the roll to the specified widths.

3.9. The bending test is carried out according to GOST 14019.

The bending test is carried out: soft tapes - by 180 °, semi-rigid - by 90 ° around the mandrel with a radius of curvature equal to the thickness of the tape.

3.10. For analysis of the chemical composition, one sample is cut from each selected roll.

The analysis of the chemical composition of the tapes is carried out according to GOST 1652.1 - GOST 1652.13 and GOST 25086, GOST 9716.1 - GOST 9716.3. It is allowed to carry out chemical analysis by other methods that are not inferior in accuracy to those indicated. If disagreements arise in the assessment of the chemical composition, the analysis is carried out according to GOST 1652.1 - GOST 1652.13.

Sampling for analysis of the chemical composition is carried out according to GOST 24231.

3.11. The waviness of the edge of the tape is checked by bending it around a mandrel with a diameter of 100 - 120 mm. If the waviness does not disappear during bending, the tape roll is rejected.

3.12. To determine the grain size, one sample is cut from each selected roll. The grain size is determined according to GOST 21073.1.

3.13. The manufacturer is allowed to use other control methods and measuring instruments that provide the necessary accuracy.

In case of disagreement in the definition of indicators, control is carried out by the methods specified in the standard.

4. TRANSPORT AND STORAGE

4.1. The weight of the package must not exceed 1250 kg.

Enlargement of packages in transport packages is carried out in accordance with the requirements of GOST 24597. Means of fastening in transport packages - according to GOST 21650. Packing is carried out on pallets using bars with a height of at least 50 mm, with strapping in the longitudinal and transverse directions with a wire with a diameter of at least 2 mm according to GOST 3282 or a tape with dimensions of at least 0.3x30 mm according to GOST 3560. Fastening the ends: wire - twisting at least five turns, ribbons - in the lock.

4.2. Tapes are transported by all types of transport in covered vehicles in accordance with the rules for the carriage of goods in force for this type of transport.

4.3. Tapes should be stored indoors. During storage, tapes must be protected from mechanical damage, moisture and active chemicals.

Approvedand put into effect

Decree of the State Standard of the USSR

STATE STANDARD OF THE UNION OF THE SSR

BRASS TAPES FOR GENERAL PURPOSE

TECHNICAL CONDITIONS

Brass strips for general use. Specifications

GOST 2208-91

Group B54

OKP 18 4530

Introduction date

INFORMATION DATA

1. Developed and introduced by the Ministry of Metallurgy of the USSR.

2. Approved and put into effect by the Decree of the USSR State Committee for Product Quality Management and Standards of 06/07/1991 N 838.

Change No. 1 was adopted by the Interstate Council for Standardization, Metrology and Certification (Minutes No. 2 dated March 5, 2002, by correspondence)

────────────────────────────┬─────────────────────────────────────

Name of State│Name of National Authority

│on standardization

────────────────────────────┼─────────────────────────────────────

Republic of Azerbaijan│Azgosstandart

Republic of Armenia│ArmState Standard

Republic of Belarus│State Standard of Belarus

Republic of Kazakhstan│State Standard of the Republic of Kazakhstan

Kyrgyz Republic│Kyrgyzstandard

Republic of Moldova│Moldova-Standard

Russian Federation│Gosstandart of Russia

Republic of Tajikistan│ Tajik State Standard

Republic of Uzbekistan│Uzgosstandart

Ukraine│State Standard of Ukraine

3. Instead of GOST 2208-75.

4. Reference normative and technical documents

────────────────────────────────┬─────────────────────────────────

Designation of the NTD, to which│Item number

────────────────────────────────┼─────────────────────────────────

GOST 166-89│3.4

GOST 427-75│3.3

GOST 1652.1-77 - GOST 1652.13-77│3.10

GOST 2991-85│1.5.1

GOST 3282-74│1.5.1; 4.1

GOST 3560-73│1.5.1; 4.1

GOST 4381-87│3.3

GOST 6507-90│3.3

GOST 8273-75│1.5.1

GOST 9716.1-79 - GOST 9716.3-79 │3.10

GOST 10510-80│3.8

GOST 11701-84│3.6

GOST 14019-80│3.9

GOST 14192-96│1.4.2

GOST 15467-79│1.3.1.3

GOST 15527-70│1.1; 1.3.2.6

GOST 15846-2002│1.5.3

GOST 18321-73│2.2

GOST 21073.1-75│3.12

GOST 21140-88│1.5.1

GOST 21650-76│4.1

GOST 24047-80│3.7

GOST 24231-80│3.10

GOST 24597-81│4.1

GOST 25086-87│3.10

GOST 26877-91│3.5; 3.6

5. Edition (November 2003) with Amendment No. 1, adopted in May 2002, (IUS 8-2002), Amendment (IUS 9-98).

This standard applies to brass bands used in various industries. The standard does not apply to radiator tapes up to 0.25 mm thick.

The requirements of para. 1.1, 1.2, 1.3.1, 1.4, 1.5, sec. 2, 3 and 4 are mandatory, other requirements are recommended.

1. TECHNICAL REQUIREMENTS

1.1. Tapes are manufactured in accordance with the requirements of this standard according to the technological regulations approved in the prescribed manner, from brass grades L90, L85, L80, L68, L63, LS59-1, LMts58-2 with a chemical composition in accordance with GOST 15527.

1.2. Main parameters and dimensions

1.2.1. The thickness of the tapes and the maximum deviations in thickness, depending on the width, must correspond to those given in table. one.

Table 1

────────────┬─────────────────────────────────────────────────────

Tape thickness│Limit deviations in tape thickness with width

├──────────────────────────┬──────────────────────────

│from 10 to 300│sv. 300 to 600

├────────────┬─────────────┼────────────┬─────────────

│ normal │ increased │ normal │ increased

│manufacturing│manufacturing │manufacturing│manufacturing

0,05│-0,01│-│-│-

0,06││││

0,07││││

0,08││││

0,09││││

────────────┼────────────┤├────────────┤

0,10│-0,02││-0,04│

0,12││││

0,14││││

0,15│-0,03│-0,02││

0,16││││

0,17││││

0,18││││

0,19││││

0,20││││

││├────────────┤

0,22│││-0,05│

────────────┼────────────┼─────────────┤│

0,25│-0,04│-0,03││

0,28││││

0,30││││

││├────────────┤

0,35│││-0,06│

────────────┼────────────┼─────────────┤│

0,40│-0,05│-0,04││

0,45││││

0,50│-0,06││-0,07│-0,06

││├────────────┼─────────────

0,55│││-0,08│-0,07

│├─────────────┤│

0,60││-0,05││

0,65││││

0,70││││

────────────┼────────────┤││

0,75│-0,07│││

0,80││-0,06│-0,09│-0,08

0,85││││

0,90││││

────────────┼────────────┼─────────────┼────────────┼─────────────

1,00│-0,08│-0,06│-0,11│-0,10

1,10││││

────────────┼────────────┤││

1,20│-0,09│││

1,30││││

│├─────────────┼────────────┼─────────────

1,35││-0,07│-0,12│-0,11

1,40││││

1,50││││

────────────┼────────────┼─────────────┼────────────┼─────────────

1,60│-0,10│-0,08│-0,14│-0,13

1,70││││

────────────┼────────────┤├────────────┼─────────────

1,80│-0,11││-0,15│-0,14

│├─────────────┤│

1,90││-0,09││

2,00││││

Note. The theoretical weight of the tapes is given in Appendix 1.

1.2.2. The width of the tapes and the maximum deviations in width, depending on the thickness, must correspond to those given in Table. 2.

table 2

───────────────────────┬───────────────────────────────────────────

Belt width│Limit deviations in belt width

│with thickness

├─────────────────────┬─────────────────────

│up to 1.00 inclusive.│St. 1.00

├──────────┬──────────┼──────────┬──────────

│normal│increased│normal│increased

│accuracy│accuracy │accuracy│accuracy

│manufactured e- │manufactured -│manufactured -│manufactured -

│ │ │ │ │ │ │

10, 12, 15, 18, 20, 22,│-0,4│-│-0,7│-0,6

25, 28, 30, 35, 40, 45,││││

50, 60, 80, 90, 100,││││

120, 150││││

───────────────────────┼──────────┼──────────┼──────────┼──────────

180, 200, 220, 250, 280│-0,7│-│-1,0│-

───────────────────────┼──────────┼──────────┼──────────┼──────────

300, 350, 400, 500, 600│-1,2│-1,0│-1,6│-1,2

1.2.3. The length of the tapes, depending on the thickness, must correspond to those given in Table. 3.

Table 3

─────────────────────────────────────────┬───────────────────────

Tape thickness, mm │ Tape length, m, not less than

─────────────────────────────────────────┼───────────────────────

From 0.05 to 0.50 inclusive.│30

" 0,55 "1,00 "│20

" 1,10 "2,00 "│10

Note. Not more than 5% of tapes of shorter length, but not less than 5 m, are allowed in a batch.

The symbols of the tapes are affixed according to the scheme:

TapeD│ PR│Х│Х │...│ ND│...│...│GOST 2208-91│

Manufacturing Method│││││││││

──────────────────────┘││││││││

Section shape││││││││

──────────────────────────┘│││││││

Manufacturing accuracy│││││││

──────────────────────────────┘││││││

Condition││││││

──────────────────────────────────┘│││││

Dimensions│││││

──────────────────────────────────────┘││││

Length││││

──────────────────────────────────────────┘│││

Brand│││

──────────────────────────────────────────────┘││

Special conditions of execution││

──────────────────────────────────────────────────┘│

Standard designation│

───────────────────────────────────────────────────────────────┘

with the following abbreviations:

Preparation method:

cold-formed (cold-rolled) - D;

Section shape:

rectangular - PR;

Manufacturing accuracy:

normal accuracy in thickness and width - H,

normal thickness accuracy and increased accuracy

in width - K,

increased thickness accuracy and normal accuracy

in width - I,

increased accuracy in thickness and width - P,

normal thickness accuracy and high accuracy

in width - R,

increased thickness accuracy and high precision

in width - L,

high thickness accuracy and normal accuracy

in width - Z,

high thickness accuracy and increased accuracy

in width - C,

high accuracy on thickness and width - In;

condition:

soft -M,

semi-solid -P,

hard -T,

especially hard - Oh,

spring hard-F;

unmeasured -ND;

special execution conditions:

for stamping - PC,

antimagnetic -AM,

increased accuracy in crescent shape -PS,

with a normalized extrusion depth -GV,

withstanding bending tests -IG.

Examples of symbols:

Tape of normal manufacturing accuracy in thickness and increased accuracy in width, semi-solid, 0.50 mm thick, 450 mm wide, made of L85 brass:

Tape DPRKP 0.50 x 450 ND L85 GOST 2208-91

The same, increased manufacturing accuracy in thickness and width, solid, 0.30 mm thick, 200 mm wide, made of L68 brass, for stamping:

Tape DPRPT 0.30 x 200 ND L68 PC GOST 2208-91

The same, of normal manufacturing accuracy in thickness and width, semi-solid, 0.35 mm thick, 100 mm wide, made of brass grade L63, with a normalized extrusion depth:

Tape DPRNP 0.35 x 100 ND L63 GV GOST 2208-91

(Revised edition, Rev. No. 1).

1.3. Characteristics

1.3.1. Mandatory execution

1.3.1.1. The dimensions of the tapes, depending on the state of the material and the brand of brass, must correspond to those given in Table. 4.

Table 4

─────────────────┬────────────────────┬───────────────┬──────────

Brand of brass│Condition of the tape│Thickness, mm │Width, mm

L90, L85, L80,│Solid│0.10 - 0.12│ 10 - 300

L68, L63│││

│Soft, semi-hard,│0.14 - 0.20│ 10 - 300

│solid│0.22 - 0.45│ 10 - 600

││0,50 - 2,00│ 20 - 600

─────────────────┼────────────────────┼───────────────┼──────────

L68│Hard│0.05 - 0.09│ 10 - 180

├────────────────────┼───────────────┼──────────

│Special hardness │0.10 - 0.20│ 10 - 300

││0,22 - 0,45│ 10 - 600

││0,55 - 1,00│ 20 - 600

─────────────────┼────────────────────┼───────────────┼──────────

L63│Extra hard │0.05 - 0.09│ 10 - 180

││0,10 - 0,20│ 10 - 300

││0,22 - 0,45│ 10 - 600

││0,50 - 2,00│ 20 - 600

├────────────────────┼───────────────┼──────────

│spring hard│0,10 - 0,20│ 10 - 300

││0,22 - 0,45│ 10 - 600

││0,50 - 1,00│ 20 - 600

─────────────────┼────────────────────┼───────────────┼──────────

LS59-1│Soft│0.14 - 0.40│ 10 - 180

││0,45 - 1,40│ 20 - 280

││1,50 - 2,00│ 20 - 180

├────────────────────┼───────────────┼──────────

││0,45 - 1,40│ 20 - 280

││1,50 - 2,00│ 20 - 180

├────────────────────┼───────────────┼──────────

│Special hardness │0.35 - 1.20│ 20 - 280

─────────────────┼────────────────────┼───────────────┼──────────

LMts58-2│Soft│0.14 - 0.40│ 10 - 180

││0,45 - 1,40│ 20 - 280

││1,50 - 2,00│ 20 - 280

├────────────────────┼───────────────┼──────────

│Semi-solid│0.14 - 0.40│ 10 - 180

││0,45 - 1,40│ 20 - 280

├────────────────────┼───────────────┼──────────

│Solid│0.10 - 0.40│ 10 - 180

││0,45 - 1,40│ 20 - 280

││1,50 - 2,00│ 20 - 180

1.3.1.2. The surface of the tapes must be clean, i.e. free from contaminants that hinder inspection. Separate surface defects are allowed that do not lead the tape during the control stripping beyond the maximum deviations in thickness, tint colors, local redness, slight darkening, as well as traces of technological lubricant on solid tapes and traces of unburned technological lubricant on annealed tapes.

1.3.1.3. The tapes must be evenly cut and must not have significant (according to GOST 15467) burrs and warping. Wavy and torn edges are not allowed. Slight waviness is allowed, disappearing at the control bend.

Separate nicks are allowed at the ends of the rolls, which do not prevent the unwinding of the roll and do not lead the tape beyond the maximum deviations in width.

The crescent of the tapes should not exceed: with a width of up to 100 mm inclusive - 4 mm per 1 m of length, with a width of more than 100 mm - 3 mm per 1 m of length.

The deflection should not exceed 1 mm for tapes with a width of 10 to 100 mm and 1 mm for every 100 mm of width for tapes over 100 mm wide.

1.3.1.4. The mechanical properties of the tapes, depending on the state and brand of brass, must correspond to those indicated in Table. 5.

Table 5

───────┬────────────┬─────────────────────────────────┬───────────

Brand │ Condition │Temporary resistance │Relative -

brass│tape│sigma, MPa (kgf/mm2)│elongation -

││in│delta,

│││%, not less than

L90│Soft│Ot 230 to 370 (from 24 to 38)│36

│Semi-solid │О t 290 to 400 (from 30 to 41)│10

│Solid│N not less than 350 (not less than 36)│3

───────┼────────────┼─────────────────────────────────┼───────────

L85│Soft│Ot 250 to 360 (from 26 to 37)│38

│Semi-solid │О t 320 to 430 (from 33 to 44)│12

───────┼────────────┼─────────────────────────────────┼───────────

L80│Soft│Ot 260 to 370 (from 27 to 38)│40

│Semi-solid │О t 330 to 430 (from 34 to 44)│15

│Solid│N not less than 390 (not less than 40)│3

───────┼────────────┼─────────────────────────────────┼───────────

L68│Soft│Ot 280 to 390 (from 29 to 40)│42

│Solid│О t 430 to 540 (from 44 to 55)│10

│Especially hardened │N not less than 520 (not less than 53)│-

───────┼────────────┼─────────────────────────────────┼───────────

L63│Soft│О t 290 to 410 (from 30 to 42)│38

│Semi-solid │О t 340 to 470 (from 35 to 48)│20

│Solid│О t 410 to 570 (from 42 to 58)│8

│Especially hard │О t 510 to 640 (from 52 to 65)│4

│Spring- │Not less than 610 (not less than 62)│-

│solid││

───────┼────────────┼─────────────────────────────────┼───────────

LS59-1 │Soft│О t 340 to 490 (from 35 to 50)│25

│Solid│О t 460 to 640 (from 47 to 65)│5

│Especially hard │N not less than 590 (not less than 60)│3

───────┼────────────┼─────────────────────────────────┼───────────

LMts58-2│Soft│О t 380 to 490 (from 39 to 50)│30

│Semi-hard │About t 420 to 590 (from 43 to 60)│15

│Solid │Н e less than 570 (not less than 58)│4

Notes. 1. The upper limit of tensile strength may be higher, but not more than 20 MPa (2 kgf/mm 2 ) while maintaining a minimum relative elongation or extrusion depth.

2. Tensile strength is determined for tapes with a thickness of 0.3 mm or more, relative elongation - for tapes with a thickness of 0.5 mm or more. Mechanical properties for tapes less than 0.3 mm thick are reference.

3. Hardness values ​​are given in Appendix 2.

(Amendment)

1.3.2. Execution at the request of the consumer

1.3.2.1. Tapes with a thickness of 0.5 to 1.2 mm are produced with a width of 15 mm.

1.3.2.2. Tapes are made in widths 14, 16, 17, 21, 23, 24, 26, 27, 31, 32, 33, 34, 36, 37, 38, 41, 42, 43, 44, 46, 47, 48, 52, 54 , 55, 58, 62, 63, 64, 65, 68, 70, 74, 75, 78, 85, 86, 87, 88, 89, 91, 92, 93, 95, 98, 102, 103, 105, 110 , 112, 114, 116, 118, 119, 123, 125, 128, 130, 136, 140, 145, 147, 164, 168, 170, 175, 185, 187, 190, 196, 205, 210, 212, 213, 216, 225, 226, 230, 240, 255, 260, 263 , 270, 290, 305, 320, 335, 345, 360, 365, 380, 390, 415 (mm) with limit deviations for the next larger size given in Table. 2.

Tapes of the indicated widths are produced if the mass of the batch is at least 5 tons.

1.3.2.3. Tapes up to 100 mm wide inclusive are manufactured with increased accuracy in crescent not more than 3 mm per 1 m of length.

1.3.2.4. The extrusion depth for tapes with a thickness of 0.1 mm or more when testing for drawing a spherical hole with a punch with a radius of 10 mm must correspond to that indicated in Table. 6.

Table 6

mm

──────┬────────────┬────────────────────────────────────────────────────────────────────

Brand │Condition│Extrusion depth at tape thickness

brass│ribbons├───────────┬───────────┬────────┬───────────┬───────────┬───────────

││0,10 - 0,28│0,30 - 0,50│0,55│0,60 - 1,10│1,20 - 1,60│1,70 - 2,00

L90│Soft │Н not less than 7 │Not less than 7 │-│-│-│-

│Hard│ 2.5 - 5.5 │ 4.0 - 7.0 │-│-│-│-

──────┼────────────┼───────────┼───────────┼────────┼───────────┼───────────┼───────────

L80│Soft │Н e less than 8 │-│-│-│-│-

──────┼────────────┼───────────┼───────────┼────────┼───────────┼───────────┼───────────

L68│soft │Н not less than 8 │not less than 10│not less│Not less than│not less than│not less than

││││11,0│11,5│12,0│12,5

│Semi-hard │7 - 9│ 7.5 - 10│ 9 - 11 │9 - 11│10 - 12│10.5 - 12.5

│Solid│5 - 7│5 - 7.5 │-│-│-│-

──────┼────────────┼───────────┼───────────┼────────┼───────────┼───────────┼───────────

L63│Soft │Н e less│Not less│Not less│Not less than│not less than│not less than

││7,5│9,5│9,5│10,0│10,5│11,0

│Semi-hard │ 5.5 - 7.5 │6 - 9.5 │ 6 - 9.5│7 - 10│ 8.5 - 10.5│9 - 11

│Hard│ 2.5 - 5.5 │ 5.0 - 7.5 │-│-│-│-

│Particularly hardening│ 2,0 - 4,5 │-│-│-│-│-

1.3.2.5. Tapes for stamping with a thickness of 0.30 - 1.10 mm from brass grades L63 and L68 in semi-solid and solid states are made with an extrusion depth in accordance with Table. 7. The tensile strength and relative elongation in this case are not determined.

Table 7

──────┬───────────────┬───────────────────────────────────────────

Mark │Condition of the tape│Extrusion depth at the thickness of the tapes

brass││

│├───────────────┬──────────────┬────────────

││0,30 - 0,50│0,55│0,60 - 1,10

L68│Semi-hard│9 - 11│9 - 11│ 9.5 - 11.5

│Solid│7 - 9│-│-

──────┼───────────────┼───────────────┼──────────────┼────────────

L63│Semi-hard│7.5 - 9.5│7.5 - 9.5│8 - 10

1.3.2.6. Tapes are made antimagnetic in accordance with GOST 15527.

1.3.2.7. It is allowed to establish requirements for the surface according to samples approved in the prescribed manner.

1.3.2.8. Soft and semi-hard tapes made of brass grade LMts58-2 with a thickness of 0.50 mm or more must withstand the bending test without the appearance of tears and cracks.

1.3.3. Execution by agreement between the manufacturer and the consumer

1.3.3.1. Tapes with a thickness of 0.10 - 0.20 mm are made with a width of more than 300 mm with maximum deviations in accordance with table. one.

1.3.3.2. Tapes with a thickness of 0.10 - 0.12 mm with limit deviations in accordance with the table. 1 is made in soft and semi-hard states.

1.3.3.3. Tapes are made in intermediate sizes in thickness and width with maximum deviations for the next larger size, given in table. 1 and 2.

1.3.3.4. Tapes with a thickness of 0.25 mm or more are manufactured with high accuracy in thickness with maximum deviations of 0.01 mm less than limit deviations for high precision tapes.

1.3.3.5. Tapes are made in the width given in paragraph 1.3.2.2. Tapes of the indicated widths are produced if the mass of the batch is less than 5 tons.

1.3.3.6. Tapes are made with high accuracy in width. Limit deviations in width are set by agreement between the manufacturer and the consumer.

1.3.3.7. Tapes are made in lengths exceeding given in clause 1.2.3. At the same time, the maximum deviations in thickness and width and the requirements for surface quality are set by agreement between the manufacturer and the consumer.

1.3.3.8. It is allowed to set additional indicators of mechanical properties. In this case, the norms of temporary resistance, relative elongation and extrusion depth are set by agreement between the manufacturer and the consumer.

1.3.3.9. Tapes less than 0.30 mm thick are manufactured with regulated mechanical properties.

1.3.3.10. Soft tapes with a thickness of 1.0 - 1.5 mm made of L63 brand brass are manufactured with a regulated extrusion depth. The extrusion depth standards are set by agreement between the manufacturer and the consumer. In this case, the tensile strength and relative elongation are not determined.

1.3.3.11. Soft tapes are produced with a regulated grain size.

1.3.3.12. Allowed extra hard tapes made of L63 grade brass with a relative elongation of at least 3%.

1.3.3.13. Tapes made of brass grades and states not listed in Table. 6 are manufactured with a regulated extrusion depth.

1.3.3.14. It is allowed to set standards for the depth of extrusion when testing with a punch with a radius of 1.5; 4 and 7.5 mm.

1.3.3.15. The upper and lower limits of the extrusion depth may differ from those given in Table. 6 no more than +/- 0.5 mm. In this case, the tensile strength and relative elongation must correspond to given in table. 5.

(Revised edition, Rev.No. 1).

1.3.3.16. Soft tapes with a thickness of 0.80 - 1.20 mm, a width of 100 - 400 mm made of brass grades L63 and L68, intended for deep drawing, are made with a relative elongation of at least 50% (tensile strength in this case is not determined) and a grain size of 0.015 - 0.040 mm.

The tensile test of such tapes is carried out on agreed samples.

The crescent of these tapes is allowed no more than 1.5 mm per 1 m of length.

(Introduced additionally, rev.No. 1).

1.4. Marking

1.4.1. Each roll must be affixed with a label stating:

conditional designation of the tape;

batch number.

In addition, the end of the roll or label must be stamped. technical control or number of the technical controller.

1.4.2. Transport marking - in accordance with GOST 14192 with the application of manipulation signs "Protect from moisture", "Top".

(Revised edition, Rev.No. 1).

1.5. Package

1.5.1. Tapes should be rolled up. Recommended sizes of internal diameters of rolls: 40, 50, 60, 75, 100, 120, 150, 200, 250, 300, 320, 400, 500 mm. The specific diameter is set by agreement between the manufacturer and the consumer.

Winding should exclude the change in the shape of the roll under the action of gravity.

Rolls of tapes with a thickness of up to 0.80 mm inclusive must be tied with a tape with dimensions of at least 0.2 x 15 mm in accordance with GOST 3560 or this standard or with a wire with a diameter of at least 1 mm in accordance with GOST 3282, packed in thick wooden boxes of types I, II, III according to GOST 2991 and are lined with wood shavings or other materials that protect the tapes from damage.The sizes of boxes - in accordance with GOST 21140 or NTD.

It is allowed, by agreement between the manufacturer and the consumer, to pack rolls of tapes with a thickness of more than 0.60 to 0.80 mm in non-woven material without packing in boxes.

Rolls of tapes with a thickness of more than 0.80 mm must be tied with a tape with dimensions of at least 0.2 x 15 mm in accordance with GOST 3560 or this standard or with a wire with a diameter of at least 1 mm in accordance with GOST 3282 and wrapped in paper in accordance with GOST 8273 or non-woven material, or in other types of packaging materials that ensure the safety of products, with the exception of linen and cotton fabrics.

Rolls of tapes are wrapped in a spiral wrapping material in one layer with an overlap of one third. The end is fixed with steel wire in one girth. Fastening the ends of the wire - twisting at least three turns.

1.5.2. It is allowed when transporting in universal or specialized containers, covered vehicles and wagons to one address without reloading on the way, do not pack tapes in boxes or fabric.

The tapes must be laid and reinforced so that they do not move inside the container, motor vehicle or wagon during transportation.

1.5.3. Packing of tapes in the regions of the Far North and hard-to-reach areas equated to them - according to GOST 15846 for the group "Metals and metal products".

2. ACCEPTANCE

2.1. Tapes are accepted in batches. The batch must consist of strips of the same brand of brass, of the same size, of the same material condition, of the same workmanship. The batch must be issued with one quality document containing:

trademark or name and trademark of the manufacturer;

conditional designation of the tape;

test results (at the request of the consumer);

lot number;

the mass of the party;

number of rolls (at the request of the consumer).

It is allowed to draw up one quality document for several batches of tapes of the same size, one material condition, one manufacturing accuracy, one brand of brass shipped to one consumer, indicating batch numbers.

2.2. To control the dimensions, appearance, crescent and deflection, rolls are selected from the batch "blindly" (by the method of greatest objectivity) according to GOST 18321.

2.3. The number of tape rolls selected for thickness control is determined in accordance with Table. eight.

Table 8

───────────────────────────────┬──────────────────────────────────

Number of rolls in a batch│Number of controlled rolls

───────────────────────────────┼──────────────────────────────────

The number of control points in each selected roll is determined depending on the length of the tape in the roll in accordance with the table. nine.

Table 9

────────────────────┬──────────────────────────┬──────────────────

Tape length, m│ Quantity controlled│Rejection number

│dots per roll, pcs.│

────────────────────┼──────────────────────────┼──────────────────

From 5 to 7 including. │3│1

St. 7"12"│5│1

"75" 140"│13│2

" 140" 250"│20│3

" 250" 600"│32│4

" 600" 1600 "│50│6

The selected tape roll is considered valid if the number of measurement results that do not meet the requirements of Table. 1, less than the rejection number given in table. 9, one or more.

If unsatisfactory measurement results are obtained on at least one of the controlled rolls, the batch is rejected.

It is allowed for the manufacturer to carry out thickness control during the production process.

2.4. To control the width, appearance, crescent and deflection, rolls are selected from the batch in accordance with Table. ten.

Table 10

─────────────────────┬─────────────────────────┬──────────────────

Number of rolls│Quantity controlled│Rejection number

per batch, pcs.│rolls, pcs.│

─────────────────────┼─────────────────────────┼──────────────────

51 - 90│13│2

91 - 150│20│3

151 - 280│32│4

281 - 500│50│6

501 - 1200│80│8

A batch is considered valid if the number of rolls that do not meet the requirements of Table. 2, pp. 1.3, 1.2, 1.3.1.3, less than the rejection number given in Table. ten.

It is allowed for the manufacturer to control each roll of the lot.

2.5. For tensile testing, drawing a spherical hole, bending and to determine the size of the grain, three rolls are taken from the batch from each full and incomplete 1000 kg.

In the production of enlarged rolls by welding, it is allowed for the manufacturer to test for tension, drawing a spherical hole, deflection and to determine the grain size from a batch, select three rolls from each full and incomplete 3000 kg of the batch.

2.6. The chemical composition of the tapes is determined on two rolls taken from the batch.

It is allowed at the manufacturing plant to carry out sampling from molten metal.

2.7. Upon receipt of unsatisfactory test results for at least one of the indicators according to pp. 2.5 and 2.6 it is retested on a double sample taken from the same lot. The results of the repeated test shall be applied to the entire batch.

3. CONTROL METHODS

3.1. The control of dimensions, appearance, crescent and deflection is carried out with a given probability of 96% (acceptance defectiveness level AQL = 4%).

3.2. The appearance of the tapes is checked by inspection without the use of magnifying devices.

3.3. The thickness of the tapes is measured with a micrometer according to GOST 6507 or a lever micrometer according to GOST 4381.

Measurement of the tape thickness is carried out at a distance of at least 100 mm from the end and at least 10 mm from the edge. For tapes with a width of 20 mm or less, the measurement is carried out in the middle.

The thickness of the tape is measured on each selected roll at the points located evenly-randomly along the length of the roll.

The length of the tape (L) in meters is calculated by the formula

,

where D and d are, respectively, the outer and inner diameters of the roll, measured with a ruler according to GOST 427, mm;

a - tape thickness, mm.

The results of measuring the thickness of the tape that do not meet the requirements of table. 1 must not differ from allowed more than half of the tolerance zone.

(Revised edition, Rev.No. 1).

3.4. The width of the tape is measured with a caliper according to GOST 166.

The measurement is carried out in one place at a distance of at least 100 mm from the end.

3.5. The crescent of the tape is measured according to GOST 26877 in one place on any part of the roll.

3.6. Tape deflection is measured according to GOST 26877 in one place on any section of the roll at a distance of at least 100 mm from the end.

3.7. For tensile testing, one sample is cut from each selected roll. Sampling for tensile testing is carried out according to GOST 24047.

The tensile test of tapes is carried out according to GOST 11701 on samples of type I or II with and mm. The tensile test of tapes with a width of less than 20 mm is carried out on samples with a width equal to the width of the tape, while the edges of the samples can be machined.

3.8. To test the drawing of a spherical hole, one sample is cut from each selected roll. The test is carried out according to GOST 10510.

It is allowed to test the drawing of a spherical hole on machines in manual mode.

It is allowed at the manufacturer to carry out a test for drawing a spherical hole for tapes with a width of less than 90 mm on samples before cutting the roll to the specified widths.

3.9. The bending test is carried out according to GOST 14019.

The bending test is carried out: soft tapes - by 180 °, semi-rigid - by 90 ° around the mandrel with a radius of curvature equal to the thickness of the tape.

3.10. For analysis of the chemical composition, one sample is cut from each selected roll.

The analysis of the chemical composition of the tapes is carried out according to GOST 1652.1 - GOST 1652.13 and GOST 25086, GOST 9716.1 - GOST 9716.3. It is allowed to carry out chemical analysis by other methods that are not inferior in accuracy specified. In case of disagreement in the assessment of the chemical composition, the analysis is carried out according to GOST 1652.1 - GOST 1652.13.

Sampling for analysis of the chemical composition is carried out according to GOST 24231.

3.11. The waviness of the tape edge is checked rounding around a mandrel with a diameter of 100 - 120 mm. If the waviness does not disappear during bending, the tape roll is rejected.

3.12. To determine the grain size, one sample is cut from each selected roll. Determination of grain size is carried out according to GOST 21073.1.

3.13. The manufacturer is allowed to use other control methods and measuring instruments that provide the necessary accuracy.

In case of disagreement in the definition of indicators, control is carried out by the methods specified in the standard.

4. TRANSPORT AND STORAGE

4.1. The weight of the package must not exceed 1250 kg.

Consolidation of cargo st to tr Anport packages are carried out in accordance with the requirements of GOST 24597. Fastening means in transport packages - in accordance with GOST 21650. Packaging is carried out on pallets using bars with a height of at least 50 mm, with strapping in the longitudinal and transverse directions with a wire with a diameter of at least 2 mm in accordance with GOST 3282 or tape with dimensions of at least 0.3 x 30 mm according to GOST 3560. Fastening the ends of the wire - twisting at least five turns, tape - in the lock.

4.2. Tapes are transported by all means of transport in covered vehicles in accordance with the rules for the carriage of goods in force for this type of transport.

4.3. Tapes should be stored indoors. During storage, tapes must be protected from mechanical damage, moisture and active chemicals.

Boxes with tapes must be kept in the warehouse in the manufacturer's packaging 1 - 2 day to equalize the temperature of the tapes with the room temperature. After the specified period, the boxes must be unpacked.

If the specified storage conditions are observed, the consumer properties of tapes do not change during storage.

Appendix 1

Reference

THEORETICAL WEIGHT 1 M 2 BRASS TAPE

Table 11

───────────────┬──────────────────────────────────────────────────

Tape thickness, │Theoretical weight 1 m 2 tapes, kg, made of brass grades

mm├─────────────────────┬────────────────────────────

│L90, L85, L80│ L68, L63, LS59-1, LMts58-2

───────────────┼─────────────────────┼────────────────────────────

0,05│0,44│0,43

0,06│0,52│0,51

0,07│0,61│0,60

0,08│0,70│0,68

0,09│0,78│0,77

0,10│0,87│0,85

0,12│1,04│1,02

0,14│1,22│1,19

0,15│1,31│1,28

0,18│1,57│1,53

0,20│1,74│1,70

0,22│1,91│1,87

0,25│2,18│2,13

0,30│2,61│2,55

0,35│3,05│2,98

0,40│3,48│3,40

0,45│3,92│3,83

0,50│4,35│4,25

0,55│4,78│4,68

0,60│5,22│5,10

0,65│5,66│5,53

0,70│6,09│5,95

0,75│6,53│6,38

0,80│6,96│6,80

0,85 │7,40│7,23

0,90│7,83│7,65

1,00│8,70│8,50

1,10│9,57│9,36

1,20│10,44│10,20

1,30│11,31│11,05

1,35│11,75│11,48

1,40│12,18│11,90

1,50│13,05│12,75

1,60│13,92│13,60

1,70│14,79│14,45

1,80│15,66│15,30

1,90│16,53│16,15

2,00│17,40│17,00

Note. When calculating the theoretical mass, the density of brass grades L90, L85, L80 is taken equal to 8.7 g/cm3, brass grades L68, L63, LS59-1, LMts58-2 - equal to 8.5 g/cm3.

Appendix 2

Reference

BRINEL HARDNESS OF BRASS TAPES

Table 12

───────────────────────┬───────────────────┬──────────────────────

Brass grade│Belt condition│Brinell hardness

L90│Soft│60

│Semi-hard│85

│Solid│110

───────────────────────┼───────────────────┼──────────────────────

L85│Soft│65

│Semi-hard│95

│Solid│110

───────────────────────┼───────────────────┼──────────────────────

L80│Soft│65

│Semi-hard│95

│Solid│120

───────────────────────┼───────────────────┼──────────────────────

L68│Soft│70

│Semi-hard│105

│Solid│125

│Particularly hardening│155

───────────────────────┼───────────────────┼──────────────────────

L63│Soft│ 70

│Semi-hard│105

│Solid│135

│Particularly hardening│160

│spring hard│180

Related Articles

The criteria for classifying organizations and individual entrepreneurs as small and medium-sized businesses have changed

See what "Royalty" is in other dictionaries Pitfalls of legislation

What is required to open a sole proprietorship?

Evaluation of labor productivity of managers and HR specialists Basic rules of remuneration

Quality requirements

Peat resources Milling peat extraction

Latest Articles

• 

  2022-05-07 03:07:16

  Closed Joint Stock Company Transtelecom
• 

  2022-05-07 03:07:16

  Setting up Wi-Fi equipment
• 

  2022-05-07 03:07:16

  Pasteurization drawer for the selection of "heads" during rectification

Popular Articles

• 

  Layout of the house, plans of houses and cottages

• 

  Small Business - Home Production Ideas

• 

  History of JANOME. Sewing machines. Janome, Veritas, Pfaff Sewing machine janome manufacturer country

• 

  Working with the tattis system

• 

  Properties of copper and its application

Editor's Choice

• 2022-05-07 03:07:16
  Nitrogen compounds The oxidation state of hno3 is

  Compounds with an oxidation state of –3. Nitrogen compounds in the -3 oxidation state are represented by ammonia and metal nitrides. Ammonia - NH 3 - colorless...

• 2022-04-27 11:28:49
  Flower party: a bouquet of positive emotions

  Western District Administration of the Department of Education of Moscow State budgetary educational institution of the city of Moscow secondary ...

• 2022-04-27 11:28:49
  Words of teachers in a congratulatory scene for parents

  Not a single holiday in honor of International Women's Day, wherever it is held, is complete without congratulations from ladies, adults and even very young ones....

• 2022-04-27 11:28:49
  Who's Who by Relationship Her mother-in-law calls her mother-in-law mom

  When we get married or get married, we immediately have twice as many relatives. And they all have a name. You won't remember right away. No, well...

• 2022-04-27 11:28:49
  Your mother is my mother-in-law Riddle mother-in-law calls my mother-in-law

  Getting married means bringing a lot of new things into your life. © vedmochka.com And far from the last place in this "parade of novelty" is occupied by ...