ASTM A182 F5 F9 F11 a182 forged fitting half coupling
ASTM A182 Alloy Steel Forged Fittings are manufactured according to the ASTM A182 specification, which covers high pressure and high temperature service flanges covered by ASME B16.11, MSS-SP-79/ 83/ 95/ 97 and BS3799 standards.
ASTM A182 is the Standard Specification for Forged Stainless Steel Pipe Flanges and Stainless Steel Forged Fittings. After hot working, forgings should be cooled to a specific temperature before heat treatment, which should be carried out according to certain requirements such as heat treatment type, austenitization/solution temperature, cooling medium, and quenching.