You can download ASTM A336/A336M-18a pdf here.Standard Specification for Alloy Steel Forgings for Pressure and High-Temperature Parts.
This specification covers ferritic steel forgings for boilers, pressure vessels, high-temperature parts, and associated equipment.
4. Melting and Forging
4.1 In addition to the melting and forging requirements of Specification A788/A788M, which may be supplemented Supplementary Requirement S8, the following conditions.
4.1.1 A sufficient discard shall be made to secure freedom from injurious pipe and undue segregation.
5. Machining
5. I Forged pressure vessels for steam power service shall have the inner surface machined or ground. Unfired pressure vessels shall have the inner surfaces sufficiently free of scale to permit Inspection.
5. 2 Unless otherwise specified by the purchaser, when rough machining is performed, it may be done either before or after heat treatment at the manufacturers option.
8. Mechanical Properties
8.1 General Requirements-The material shall conform to the requirements for mechanical properties prescribed in Table I. The largest obtainable tension test specimen as specified in Test Methods and Definitions A370 shall be used.
8.1. I Except as required in 3.4, for annealed, normalized, and tempered or quenched and tempered forgings, the longi tudinal axis of the tension test specimens, and, when required, Charpy impact test specimens, shall be parallel to the direction of major working of the forging, except when Supplementary Requirement $2 is specified. For upset disk forgings, th longitudinal axis of the test specimen shall be in the tangential direction.
PS:The second page is covered by black, the specific data content can not be seen clearly.
ASTM A336/A336M-18a free download
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