Standard Specification for
Steel Bars, Carbon, Quenched and Tempered1
This popular is issued beneath the fixed designation a 321; the variety straight away following the designation suggests the 12 months of
authentic adoption or, within the case of revision, the year of closing revision. a variety of in parentheses indicates the 12 months of closing reapproval. a
superscript epsilon (e) shows an editorial trade for the reason that last revision or reapproval.
click below to download Astm A 321 – 90 (Reapproved 2001) pdf free
click here to download Astm A 320M – 03 pdf free