ASTM A350/A350M-26a

Podrobné informace

Označení: ASTM A350/A350M-26a

Datum vydání: 15.02.2026

Stran: 11

Země: Americká technická norma

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Anotace

This specification covers several grades of carbon and low alloy steel forged or ring-rolled flanges, forged fittings and valves for low-temperature service. The steel specimens shall be melt processed using open-hearth, basic oxygen, electric furnace or vacuum-induction melting. A sufficient discard shall be made to secure freedom from injurious piping and undue segregation. The materials shall be forged and shall undergo heat treatment such as normalizing, tempering, quenching and precipitation heat treatment. Heat analysis and product analysis shall be performed wherein the steel materials shall conform to the required chemical compositions of carbon, manganese, phosphorus, sulfur, silicon, nickel, chromium, molybdenum, copper, columbium, vanadium, and nitrogen. The materials shall also undergo tension tests and shall conform to the required values of tensile strength, yield strength and elongation. Impact tests shall also be performed and the steel materials shall conform to the required values of minimum impact energy, temperature, and minimum equivalent absorbed energy. Hardness and hydrostatic tests shall also be performed.


Keywords:
carbon equivalent, pipe fittings, steel, piping applications, pressure containing parts, steel flanges, steel forgings, alloy, steel forgings, carbon, steel valves, temperature service applications, low,, ICS Number Code 23.040.40 (Metal fittings)