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  • BS 970-4:1970

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    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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    Specification for wrought steels for mechanical and allied engineering purposes Valve steels

    Available format(s):  Hardcopy, PDF

    Superseded date:  15-08-1998

    Language(s):  English

    Published date:  12-02-1970

    Publisher:  British Standards Institution

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    Table of Contents - (Show below) - (Hide below)

    Co-operating organizations
    Foreword
    SPECIFICATION
    1. GENERAL REQUIREMENTS
       1.1 Scope
       1.2 General
       1.3 Information to be supplied by the purchaser
       1.4 Steelmaking process
       1.5 Chemical composition
       1.6 Product analysis and permitted variations
       1.7 Freedom from defects
       1.8 Standard sizes and tolerances
       1.9 Condition of material on delivery
       1.10 Text deleted
       1.11 Text deleted
       1.12 Number of hardness tests
       1.13 Hardness test
       1.14 Retests
       1.15 Inspection
       1.16 Test facilities
       1.17 Manufacturer's statement
       1.18 Identification
       1.19 Text deleted
    2. SPECIFIC REQUIREMENTS FOR STAINLESS AND HEAT RESISTING
       STEELS
       Text deleted
    3. SPECIFIC REQUIREMENTS FOR VALVE STEELS
    Appendices
       A. Text deleted
       B. Summary tables

    Abstract - (Show below) - (Hide below)

    General requirements: information to be supplied by purchaser, product analysis and permitted variations, condition of material on delivery, hardness testing, etc. En steels replaced. Chemical composition, condition of supply, approval test and heat treatment of individual valve steels. Summary tables.

    General Product Information - (Show below) - (Hide below)

    Committee ISE/105
    Development Note Supersedes BS 970(1955) (07/2004)
    Document Type Standard
    Publisher British Standards Institution
    Status Superseded
    Superseded By
    Supersedes

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    Standards Referencing This Book - (Show below) - (Hide below)

    BS 4114:1967 Specification for dimensional and quantity tolerances for steel drop and press forgings and for upset forgings made on horizontal forging machines
    BS 891-1:1962 Method for Rockwell hardness test Testing of metals
    BS 1837:1970 Methods for the sampling of iron, steel, permanent magnet alloys and ferro-alloys
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    BS 5046:1974 Method for the estimation of equivalent diameters in the heat treatment of steel
    BS 240-2:1964 Method for Brinell hardness test Verification of the testing machine
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