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standard by ASTM International, 12/01/2016
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1.1This specification covers one grade of martensitic stainless steel and several grades of ferritic steel castings for cylinders (shells), valve chests, throttle valves, and other heavy-walled castings for steam turbine applications.
1.2Optional supplementary requirements (S1 through S5) shall apply as selected by and specified by the purchaser.
1.3The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.
1.3.1Within the text, the SI units are shown in brackets.