API TR 938-B:2008 Use of 9Cr-1Mo-V (Grade 91) Steel in the Oil Refining Industry

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American Petroleum Institute (API). — June 2008. — 57 p. — First Edition.

Use of 9Cr-1Mo-V (Grade 91) Steel in the Oil Refining Industry.
This report is only applicable to the 9Cr-1Mo-V alloy steel, Grade 91.