GOST 19851-74
GOST 19851−74 Tape cold-rolled cut. Specifications (with Amendments No. 1, 2)
GOST 19851−74
Group B34
INTERSTATE STANDARD
TAPE COLD-ROLLED CUT
Specifications
Cold rolled steel cut strip. Specifications
OKP 12 3100
Date of introduction 1976−01−01
The decision of the State standards Committee of the Council of Ministers of the USSR dated may 28, 1974, 1341 N date of introduction is established 01.01.76
Limitation of actions taken by Protocol No. 7−95 Interstate Council for standardization, Metrology and certification (ICS 11−95).
EDITION with Amendments No. 1, 2 approved in January 1981 and December 1990 (IUS 3−81, 4−91)
This standard applies to cutting the ribbon (hereinafter ribbon) cold-rolled, made from low-carbon and carbon quality and ordinary steel with a thickness of 0.4 to 3.5 mm, width from 100 to 500 mm, designed for cold stamping parts and other purposes.
At the request of the other manufactured tape widths.
(Changed edition, Rev. N 2).
1. CLASSIFICATION AND ASSORTMENT
1.1. Tape is manufactured with standard characteristics according to GOST 9045−93 or GOST 16523−97.
(Changed edition, Rev. N 2).
1.2. (Deleted, Rev. N 2).
1.3. The thickness of the strip and the permissible limit deviation should correspond to GOST 19904−90 (the width of a rental not exceeding 1500 mm).
Note. For strips of a thickness more than 0.9 mm normal precision manufacturing at the welded seams may increase the thickness by 0.02 mm.
(Changed edition, Rev. N 2).
1.4. Tape is made with a cut edge width of from 100 to 500 mm with gradation of 5 mm When the strip width from 100 to 140 mm thick and 1 mm gradation in width should be 1 mm.
1.5. Tolerances for the width of the tape shall not exceed +1 mm. By agreement of the parties, the maximum deviations from -0.5 mm to +2.0 mm.
1.6. The thickness variation of the tape in one cross section and camber of the tape should meet the requirements of GOST 19904−90.
(Changed edition, Rev. N 2).
1.7. (Deleted, Rev. N 2).
1.8. The inner diameter of the rolls is from 300 to 800 mm, outside up to 1850 mm. the Diameter of the roll is specified in the order. Basically a telescoping of rolls should not exceed 15 mm.
Examples of symbols are given in Appendix 2.
(Changed edition, Rev. N 2).
2. TECHNICAL REQUIREMENTS
2.1. The tape is produced:
made of carbon steel of ordinary quality steel grades 0К300В and 0К360В and quality carbon steel grades К260В, К270В, К310В, К330В and К350В churchyard 16523−97,
of low-carbon steel grades 08JU, 08ps, 08KP with the chemical composition of the churchyard 9045−93.
2.2. The surface of the belt, its condition, finish quality and other technical requirements should correspond to GOST 9045−93 or GOST 16523−97.
2.1, 2.2. (Changed edition, Rev. N 2).
2.3. (Deleted, Rev. N 2).
2.4. Marking tape according to GOST 9045−93 or GOST 16523−97.
2.5. Packaging tape according to GOST 9045−93 or GOST 16523−97.
By agreement of the parties allowed the packaging of rolls of tape in one bundle of not more than two widths.
2.4, 2.5. (Added, Rev. N 2).
3. ACCEPTANCE
Acceptance of tape according to GOST 9045−93 or GOST 16523−97.
4. CONTROL METHODS
Methods to control the tape according to GOST 9045−93 or GOST 16523−97.
Note. Allowed to cut the samples to dissolve the rolls of tape.
Sec. 3, 4. (Changed edition, Rev. N 2).
Sec. 5. (Deleted, Rev. N 2).
6. TRANSPORTATION AND STORAGE
Transportation and storage tape according to GOST 7566−94.
Sec. 6. (Added, Rev. N 2).
APPENDIX 1. (Deleted, Rev. N 2).
ANNEX 2 (mandatory). Examples of symbols
ANNEX 2
Mandatory
Tape normal accuracy in thickness , size 0,5Х200 mm, the strength group К270В, category 6, enhanced surface finishes
:
The same, with indication of steel grades:
Ribbon increased accuracy on thickness , size, 1,2Х300 mm, high surface finish
, complex drawing
, of steel grade 08JU:
In the manufacture of the tape according to stanoevski after the steel grade is specified — . The category drawing is not specified.
APPENDIX 2. (Added, Rev. N 2).
The electronic text of the document
prepared by JSC «Code» and checked by:
the official publication of the
Steel. Ribbon: Sat. Standards. -
M.: IPK Publishing house of standards, 2003
