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ASTM A521/A521M-06(2016)
- Standard Specification for Steel, Closed-Impression Die Forgings for General Industrial Use
- standard by ASTM International, 03/01/2016
- Publisher: ASTM
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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 General Requirements Specification A788/A788M.