Standard Specification for
Steel Castings, Chromium-Nickel-Iron Alloy (25-12 Class),
for High-Temperature Service1
This widespread is issued below the fixed designation a 447/a447m; the number right away following the designation suggests the yr
of original adoption or, inside the case of revision, the yr of final revision. more than a few in parentheses indicates the 12 months of final reapproval.
a superscript epsilon (e) suggests a piece of writing alternate for the reason that ultimate revision or reapproval.
click below to download Astm A447M – 93 (Reapproved 2003) pdf free
click here to download Astm A 439 – 83 (Reapproved 1999) pdf free