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  • ASTM
    A521-96(2001) Standard Specification for Steel, Closed-Impression Die Forgings for General Industrial Use
    Edition: 2001
    $103.58
    Unlimited Users per year

Description of ASTM-A521 2001

ASTM A521-96-Reapproved2001

Historical Standard: Standard Specification for Steel, Closed-Impression Die Forgings for General Industrial Use




ASTM A521

Scope

1.1 This specification covers untreated and heat-treated steel, closed-impression die forgings (Note 1) for general industrial use.

Note 1—For the definition of a forging, refer to Definition A 509.

1.2 The classes of forgings are as follows, the choice depending on design and stress or service to be imposed:

1.2.1 Class CA—Untreated, carbon steel forgings,

1.2.2 Classes CC, CC1 and CE— Annealed, normalized and tempered, carbon steel forgings,

1.2.3 Class CF—Normalized and tempered carbon steel forgings,

1.2.4 Class CF1— Double normalized and tempered carbon steel forgings,

1.2.5 Class CG—Quenched and tempered, or normalized, quenched and tempered carbon steel forgings,

1.2.6 Class AA—Annealed, normalized, or normalized and tempered alloy steel forgings,

1.2.7 Classes AB and AC—Normalized and tempered alloy steel forgings, and

1.2.8 Classes AD, AE, AF, AG and AH—Normalized, quenched, and tempered alloy steel forgings.

Note 2—The appendix tables list recommended tolerances for a number of materials other than those covered by the above classes. The tables are for information only and the purchaser must define the condition in which he desires forgings made from materials not described above.

1.3 The values stated in inch-pound units are to be regarded as the standard.


Keywords

closed-impression die forgings; forgings-die; heat-treated die forgings; steel forgings-die; untreated die forgings


ICS Code

ICS Number Code 77.140.85 (Iron and steel forgings)


DOI: 10.1520/A0521-96R01

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