Standard Specification for
Steel Plates, 9 % Nickel Alloy, for Pressure Vessels,
Produced by the Direct-Quenching Process1

This standard is issued under the fixed designation A 844/A 844M; 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 to download Astm A 844/A 844M – 93 (Reapproved 1999) Pdf free

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Click here to Astm A 842 – 85 (Reapproved 2004) Pdf Free Download