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 266/A 266M||Carbon 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 290||Carbon and Alloy Steel Forgings for Rings for Reduction Gears|
|A 291||Steel Forgings, Carbon and Alloy, for Pinions, Gears, and Shafts for Reduction Gears|
|A 336/A 336M||Alloy Steel Forgings for Pressure and High-Temperature Parts|
|A 372/A 372M||Carbon and Alloy Steel Forgings for Thin-Walled Pressure Vessels|
|A 427||Wrought Alloy Steel Rolls for Cold and Hot Reduction|
|A 469/A 469M||Vacuum-Treated Steel Forgings for Generator Rotors|
|A 470||Vacuum-Treated Carbon and Alloy Steel Forgings for Turbine Rotors and Shafts|
|A 471||Vacuum-Treated Alloy Steel Forgings for Turbine Rotor Disks and Wheels|
|A 508/A 508M||Quenched and Tempered Vacuum-Treated Carbon and Alloy Steel Forgings for Pressure Vessels|
|A 521||Steel, Closed-Impression Die Forgings for General Industrial Use|
|A 541/A 541M||Quenched and Tempered Carbon and Alloy Steel Forgings for Pressure Vessel Components|
|A 579||Superstrength Alloy Steel Forgings|
|A 592||High-Strength Quenched and Tempered Low-Alloy Steel Forged Fittings and Parts for Pressure Vessels|
|A 649/A 649M||Forged Steel Rolls Used for Corrugating Paper Machinery|
|A 668/A 668M||Steel Forgings, Carbon and Alloy, for General Industrial Use|
|A 723/A 723M||Alloy Steel Forgings for High-Strength Pressure Component Application|
|A 765/A 765M||Carbon 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 859M||Age-Hardening Alloy Steel Forgings for Pressure Vessel Components|
|A 891||Precipitation Hardening Iron Base Superalloy Forgings for Turbine Rotor Disks and Wheels|
|A 909||Steel Forgings, Microalloy, for General Industrial Use|
|A 940||Vacuum Treated Steel Forgings, Alloy, Differentially Heat Treated, for Turbine Rotors|
|A 965/A 965M||Steel Forgings, Austenitic, for Pressure and High Temperature Parts|
|A 1021||Martensitic 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.