BS 5770-2:1981
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Steel strip intended for the manufacture of springs Specification for cold rolled carbon and low alloy steel
Hardcopy , PDF
05-15-2000
English
01-30-1981
Foreword
Cooperating organizations
Specification
1 Scope
2 References
3 Definitions
4 Designation system
5 Form of supply
6 Information to be supplied by the purchaser
7 Steelmaking process
8 Chemical composition
9 Mechanical properties
10 Response to heat treatment
11 Edge conditions
12 Surface finish
13 Dimensional tolerances
14 Freedom from defects
15 Decarburization
16 Non-metallic inclusions
17 Number of tests
18 Hardness test
19 Bend test
20 Retests
21 Test certificates
22 Inspection
23 Packaging and identification
Tables
1 Chemical composition of carbon steels
2 Chemical composition of alloy steel
3 Permitted variations of product analysis from
specified range of cast analysis for carbon steels:
grades 50, 60, 70, 80 and 95
4 Permitted variations of product analysis from
specified range of cast analysis for alloy steel:
grade 735M50
5 Hardness values
6 Bend test requirements in the annealed condition and
the annealed and skin passed condition
7 Response to heat treatment
8 Tolerances on thickness
9 Tolerances on width in the mill edge (Es) and in the
rolled round edge (E4) conditions
10 Tolerances on width in the sheared or slit edge
condition (E3); also in the dressed edge condition
(E1), where available
11 Tolerances on length of cut lengths
12 Maximum edge camber
13 Maximum deviations from flatness of cut lengths
Figures
1 Edge camber
2 Flatness of strip
3 Bend test A
4 Bend test B
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