Standard Specification for
Seamless and Electric-Welded Low-Alloy Steel Tubes1

This standard is issued under the fixed designation A 423/A 423M; 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.
This standard has been approved for use by agencies of the Department of Defense.

Click below to download Astm A 423/A 423M – 95 (Reapproved 2000) Pdf free

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Click here to Astm A 421/A 421M – 02 Pdf Free Download