Standard Practice for
Identification of Standard Electrical Steel Grades in ASTM
This standard is issued under the fixed designation A 664; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
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Click here to download Astm A 663/A 663M – 89 (Reapproved 2000)Pdf Free Download