ASTM A788/A788M-22a

Standard Specification for Steel Forgings, General Requirements

ASTM International, 08/31/2022

Publisher: ASTM

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Published:31/08/2022

Pages:17

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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:

ASTM Designation Title A266/A266M Carbon Steel Forgings for Pressure Vessel Components A288 Carbon and Alloy Steel Forgings for Magnetic Retaining Rings for Turbine Generators A289/A289M Alloy Steel Forgings for Nonmagnetic Retaining Rings for Generators A290/A290M Carbon and Alloy Steel Forgings for Rings for Reduction Gears A291/A291M Steel Forgings, Carbon and Alloy, for Pinions, Gears, and Shafts for Reduction Gears A336/A336M Alloy Steel Forgings for Pressure and High-Temperature Parts A372/A372M Carbon and Alloy Steel Forgings for Thin-Walled Pressure Vessels A469/A469M Vacuum-Treated Steel Forgings for Generator Rotors A470/A470M Vacuum-Treated Carbon and Alloy Steel Forgings for Turbine Rotors and Shafts A471/A471M Vacuum-Treated Alloy Steel Forgings for Turbine Rotor Disks and Wheels A473 Stainless Steel Forgings A504/A504M Wrought Carbon Steel Wheels A508/A508M Quenched and Tempered Vacuum-Treated Carbon and Alloy Steel Forgings for Pressure Vessels A541/A541M Quenched and Tempered Carbon and Alloy Steel Forgings for Pressure Vessel Components A579/A579M Superstrength Alloy Steel Forgings A592/A592M High-Strength Quenched and Tempered Low-Alloy Steel Forged Parts for Pressure Vessels A646/A646M Premium Quality Alloy Steel Blooms and Billets for Aircraft and Aerospace Forgings A649/A649M Forged Steel Rolls Used for Corrugating Paper Machinery A668/A668M Steel Forgings, Carbon and Alloy, for General Industrial Use A705/A705M Age-Hardening Stainless Steel Forgings A711/A711M Steel Forging Stock A723/A723M Alloy Steel Forgings for High-Strength Pressure Component Application A729/A729M Carbon and Alloy Steel Axles, Heat Treated, for Mass Transit and Electric Railway Service A765/A765M Carbon Steel and Low-Alloy Steel Pressure-Vessel-Component Forgings with Mandatory Toughness Requirements A837/A837M Steel Forgings, Alloy, for Carburizing Applications A859/A859M Age-Hardening Alloy Steel Forgings for Pressure Vessel Components A891/A891M Precipitation Hardening Iron Base Superalloy Forgings for Turbine Rotor Disks and Wheels A909/A909M Steel Forgings, Microalloy, for General Industrial Use A965/A965M Steel Forgings, Austenitic, for Pressure and High Temperature Parts A982/A982M Steel Forgings, Stainless, for Compressor and Turbine Airfoils A983/A983M Continuous Grain Flow Forged Carbon and Alloy Steel Crankshafts for Medium Speed Diesel Engines A986/A986M Magnetic Particle Examination of Continuous Grain Flow Crankshaft Forgings A1021/A1021M Martensitic Stainless Steel Forgings and Forging Stock for High-Temperature Service A1049/A1049M Stainless Steel Forgings, Ferritic/Austenitic (Duplex), for Pressure Vessels and Related Components A1090/A1090M Forged Rings and Hollows for Use as Base Plates in Power Transmission Structures

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.

1.6 When the SI version of a product specification is required by the purchase order, Specification A788/A788M shall be used in conjunction with Test Methods A1058 instead of Test Methods and Definitions A370.

1.7 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other and values from the two systems shall not be combined.

1.8 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.9 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ASTM A788/A788M-22a

Standard Specification for Steel Forgings, General Requirements

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