Standard Specification for
Welded Large Diameter Austenitic Steel Pipe for Corrosive
or High-Temperature Service1
This general is issued beneath the fixed designation a 409/a 409m; the quantity without delay following the designation indicates the year
of authentic adoption or, in the case of revision, the year of remaining revision. various in parentheses indicates the year of final reapproval.
a superscript epsilon (e) suggests an article change since the closing revision or reapproval.
click below to download Astm A 409M – 01 pdf free
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click here to download Astm A 407 – 93 (Reapproved 2004) pdf free
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