Table of Contents

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, 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

Annex A Hardenability curves for case hardening steels

Annex B Deoxidation of steel

Figures

A.1 Hardenability curves for case hardening steels

A.1.1 Alloy steels

Tables

1 Sulfur and phosphorous 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 composition 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