ASTM A336 Standard Specification for Alloy Steel Forgings for Pressure and High-Temperature Parts

ASTM A336 Standard Specification for Alloy Steel Forgings for Pressure and High-Temperature Parts

1.1 ASTM A336 Standard Specification covers ferritic steel forgings for boilers, pressure vessels, high-temperature parts, and associated equipment. 

1.2 Forgings made of steel grades listed in Specifification A 335/A 335M, may also be ordered under this specifification. The chemical, tensile, heat treatment, and marking requirements of Specifification A 335/A 335M shall apply, except the forging shall conform to the chemical requirements of Tables 1 and 2 of Specifification A 335/A 335M only with respect to heat analysis. On check analysis they may deviate from these limits to the extent permitted in Table 1 of this specifification.

Current / Formerly Grade F1 Class F1 Grade F11, Class 2 Class F11 Grade F11, Class 3 Class F11A Grade F11, Class 1 Class F11B Grade F12 Class F12 Grade F5 Class F5 Grade F5A Class F5A Grade F9 Class F9 Grade F6 Class F6 Grade F21 Class 1 Class F21A Grade F21, Class 3 Class F21 Grade F22, Class 1 Class F22A Grade F22, Class 3 Class F22 Grade F91 Class F91 Grade F3V Class F3V Grade F22V Class F22V