ASTM-A521:2001 Edition
$40.63
A521-96(2001) Standard Specification for Steel, Closed-Impression Die Forgings for General Industrial Use
Published By | Publication Date | Number of Pages |
ASTM | 2001 | 10 |
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 1āFor 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 CAāUntreated, carbon steel forgings,
1.2.2 Classes CC, CC1 and CEā Annealed, normalized and tempered, carbon steel forgings,
1.2.3 Class CFāNormalized and tempered carbon steel forgings,
1.2.4 Class CF1ā Double normalized and tempered carbon steel forgings,
1.2.5 Class CGāQuenched and tempered, or normalized, quenched and tempered carbon steel forgings,
1.2.6 Class AAāAnnealed, normalized, or normalized and tempered alloy steel forgings,
1.2.7 Classes AB and ACāNormalized and tempered alloy steel forgings, and
1.2.8 Classes AD, AE, AF, AG and AHāNormalized, quenched, and tempered alloy steel forgings.
Note 2āThe 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