BS 970-1:1996

Superseded

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Specification for wrought steels for mechanical and allied engineering purposes General inspection and testing procedures and specific requirements for carbon, carbon manganese, alloy and stainless steels

Available format(s)

Hardcopy , PDF

Superseded date

23-01-2006

Language(s)

English

Published date

15-05-1996

Publisher

British Standards Institution

Committees responsible
Foreword
Specification
Section 1. General inspection and testing procedure
1.1 Scope
1.2 References
1.3 Definitions
1.4 Symbols
1.5 General
1.6 Information to be supplied by the purchaser
1.7 Steelmaking and casting process
1.8 Chemical composition
1.9 Product analysis and permitted variations
1.10 Freedom from defects
1.11 Condition of material on delivery
1.12 Heat treatment
1.13 Mechanical properties
1.14 Selection and preparation of material for
            mechanical testing
1.15 Frequency of other tests
1.16 Test methods and test results
1.17 Retests
1.18 Inspection
1.19 Manufacturer's statement
1.20 Marking
Section 2. Specific requirements for as-rolled and
as-rolled and softened and micro-alloyed carbon manganese
steels
2.1 Specific requirements for as-rolled,
and as-rolled and softened steels
2.2 Specific requirements for micro-alloyed
carbon manganese steels
Section 3. Specific requirements for steels for surface
hardening by nitriding
Section 4. Specific requirements for case hardening
steels
Section 5. Specific requirements for stainless and heat
resisting steels
Section 6. Specific requirements for sizes and tolerances
6.1 Sizes
6.2 Mass/unit length tolerances
6.3 Dimensional tolerances
6.4 Straightness
6.5 Length
Annexes
A Hardenability curves for case hardening
            steels
B Deoxidation of steel
Tables
1 Sulfur and phosphorus composition of steels
2 Incidental percentages of elements in steels
3 Permitted variations of product analysis
            from specified range
4 As-rolled and as-rolled and softened steels:
            chemical composition and mechanical property
            requirements
5 Micro-alloyed carbon manganese steels:
            chemical composition and mechanical property
            requirements
6 Steel for surface hardening by nitriding:
            chemical composition
7 Case hardening alloy steels: chemical comp-
            osition and hardenability requirements
8 Case hardening steels: chemical composition
            and mechanical property requirements
9 Case hardening steels: heat treatment and
            maximum hardness requirements
10 Ferritic and martensitic stainless and heat
            resisting steels in the form of forgings:
            chemical composition, heat treatment and
            mechanical property requirements
11 Austenitic stainless and heat resisting steels
            in the form of forgings and heat resisting
            steel 310S31 in all product forms: chemical
            composition, softening treatment and
            mechanical property requirements
12 Billets (other than stainless steel) for
            forging: standard mass per metre and
            tolerances
13 Tolerances for hot rolled round and square
            bar and rough turned rounds
14 Tolerances for hot rolled hexagonal bar
15 Tolerances for hot rolled flat bar
Figures
A.1 Hardenability curves for case hardening steels
A.1.1 Alloy steels
A.1.1.1 Steel 523H15
A.1.1.2 Steel 527H17
A.1.1.3 Steel 590H17
A.1.1.4 Steel 635H15
A.1.1.5 Steel 637H17
A.1.1.6 Steel 655H13
A.1.1.7 Steel 665H17
A.1.1.8 Steel 665H20
A.1.1.9 Steel 665H23
A.1.1.10 Steel 708H20
A.1.1.11 Steel 805H17
A.1.1.12 Steel 805H20
A.1.1.13 Steel 805H22
A.1.1.14 Steel 808H17
A.1.1.15 Steel 815H17
A.1.1.16 Steel 820H17
A.1.1.17 Steel 822H17
A.1.1.18 Steel 832H13
A.1.1.19 Steel 835H15
List of references

Specifies the requirements for steelmaking and general testing and inspection procedures for the release of steel. Applies to stainless steels only in the form of forgings but to the heat resisting steel 310S31 in both rolled and forged product forms.

Committee	ISE/105
DevelopmentNote	Together with BS EN 10083-3, BS EN 10088-1 and BS EN 10088-3 supersedes BS 970-1(1991). (07/2005)
DocumentType	Standard
Pages	52
PublisherName	British Standards Institution
Status	Superseded
SupersededBy	BS EN 10083-1:1991 BS EN 10084:1998 BS EN 10085:2001 BS EN 10095:1999 PD 970:2001 BS EN 10250-4:2000 BS EN 10088-1:2014 BS EN 10088-2:2014 BS EN 10084:2008 BS EN 10083-1:2006 BS EN 10087:1999 BS EN 10088-3:2014

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