ASTM A788-05a

    Standard Specification for Steel Forgings, General Requirements

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    1. Scope

    1.1 This specification² covers a group of common requirements that, unless otherwise specified in the individual product specification, shall apply to steel forgings under any of the following specifications issued by ASTM:

    A 289/A 289M
    ASTMDesignationTitle
    A 266/A 266MCarbon Steel Forgings for Pressure Vessel Components
    A 288 Carbon and Alloy Steel Forgings for Magnetic Retaining Rings for Turbine Generators
    Alloy Steel Forgings for Nonmagnetic Retaining Rings for Generators
    A 290Carbon and Alloy Steel Forgings for Rings for Reduction Gears
    A 291Steel Forgings, Carbon and Alloy, for Pinions, Gears, and Shafts for Reduction Gears
    A 336/A 336MAlloy Steel Forgings for Pressure and High-Temperature Parts
    A 372/A 372MCarbon and Alloy Steel Forgings for Thin-Walled Pressure Vessels
    A 427Wrought Alloy Steel Rolls for Cold and Hot Reduction
    A 469/A 469MVacuum-Treated Steel Forgings for Generator Rotors
    A 470Vacuum-Treated Carbon and Alloy Steel Forgings for Turbine Rotors and Shafts
    A 471Vacuum-Treated Alloy Steel Forgings for Turbine Rotor Disks and Wheels
    A 508/A 508MQuenched and Tempered Vacuum-Treated Carbon and Alloy Steel Forgings for Pressure Vessels
    A 521Steel, Closed-Impression Die Forgings for General Industrial Use
    A 541/A 541MQuenched and Tempered Carbon and Alloy Steel Forgings for Pressure Vessel Components
    A 579Superstrength Alloy Steel Forgings
    A 592 High-Strength Quenched and Tempered Low-Alloy Steel Forged Fittings and Parts for Pressure Vessels
    A 649/A 649MForged Steel Rolls Used for Corrugating Paper Machinery
    A 668/A 668MSteel Forgings, Carbon and Alloy, for General Industrial Use
    A 723/A 723MAlloy Steel Forgings for High-Strength Pressure Component Application
    A 765/A 765MCarbon Steel and Low-Alloy Steel Pressure-Vessel-Component Forgings with Mandatory Toughness Requirements
    A 768 Vacuum-Treated 12 % Chromium Alloy Steel Forgings for Turbine Rotors and Shafts
    A 837 Steel Forgings, Alloy, for Carburizing Applications
    A 859/A 859MAge-Hardening Alloy Steel Forgings for Pressure Vessel Components
    A 891 Precipitation Hardening Iron Base Superalloy Forgings for Turbine Rotor Disks and Wheels
    A 909Steel Forgings, Microalloy, for General Industrial Use
    A 940Vacuum Treated Steel Forgings, Alloy, Differentially Heat Treated, for Turbine Rotors
    A 965/A 965MSteel Forgings, Austenitic, for Pressure and High Temperature Parts
    A 1021Martensitic Stainless Steel Forgings and Forging Stock for High-Temperature Service

    1.2 In case of conflict in requirements, the requirements of the individual product specifications shall prevail over those of this specification.

    1.3 The purchaser may specify additional requirements (see 4.2.3) that do not negate any of the provisions of either this specification or of the individual product specifications. The acceptance of any such additional requirements shall be dependent on negotiations with the supplier and must be included in the order.

    1.4 If, by agreement, forgings are to be supplied in a partially completed condition, that is, all of the provisions of the product specification have not been filled, then the material marking (see Section 17) and certification (see Section 16) shall reflect the extent to which the product specification requirements have been met.

    1.5 As noted in the Certification Section (16), the number and year date of this specification, as well as that of the product specification, are required to be included in the product certification.


    ICS Code

    ICS Number Code 77.140.85 (Iron and steel forgings)

    UNSPSC Code

    UNSPSC Code 31132100(Steel forgings)


    DOI: 10.1520/A0788-05A

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