Standard Specification for Alloy Steel Forgings for Pressure and High-Temperature Parts
NORMA vydaná dňa 1.11.2023
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Označenie normy: ASTM A336/A336M-23
Dátum vydania normy: 1.11.2023
Počet strán: 8
Približná hmotnosť: 24 g (0.05 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
This specification deals with ferritic alloy steel forgings for high-pressure and high-temperature parts, such as boilers, pressure vessels, and associated equipment. The steel grades covered here include the following: Grade F1; Grade F11, Classes 1, 2, and 3; Grade F12; Grade F5; Grade F5A; Grade F9; Grade F6; Grades F21 and F22, Classes 1 and 3; Grade F91, Grade F3V; and Grade F22V. Other steel grades may also be treated under this specification. Alloy steels shall be melted, forged, and rough machined at stipulated conditions. Except as permitted for Grade F22V, steel forgings shall be annealed or normalized and tempered, but may alternatively be liquid quenched and tempered as well. Impact and Charpy V-notch tests shall be performed wherein specimens shall conform to specified mechanical requirements such as notch toughness, tensile strength, yield strength, elongation, and reduction of area. Materials shall also undergo heat and product analyses and conform to specified chemical requirements.
Keywords:
chromium alloy steel, chromium-molybdenum steel, martensitic stainless steel, pressure containing parts, pressure vessel service, steel forgings—alloy, temperature service applications—high,, ICS Number Code 77.140.85 (Iron and steel forgings)