Standard Specification for
Zirconium and Zirconium Alloy Forgings1
This standard is issued under the fixed designation B 493; 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.
click below Astm B 493 – 01 (Reapproved 2003) pdf free download
click here Astm B 491/B 491M – 00 pdf free download