Active standard | Published: 01/03/2025

ASTM A1091/A1091M-25

Standard Specification for Steel Castings, Creep-Strength Enhanced Ferritic Alloy, for Pressure-Containing Parts, Suitable for High-Temperature Service

Available languages: English

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Detail information

Designation: ASTM A1091/A1091M-25

Publication date: 01/03/2025

Pages: 6

Country: American technical standard

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Anotation

This specification covers general requirements for creep-strength enhanced alloy steel castings for valves, flanges, fittings, and other pressure-containing parts intended primarily for high-temperature service. However, the castings are not restricted to such applications, and may be used for other applications for which the attributes of the material, as defined by this specification, are suitable. The specification includes one grade of martensitic alloy steel, Grade C91, which is provided in two classes, differentiated by the type of heat treatment after weld repairs.

Keywords:
casting, centrifugal, ferritic, high-temperature service, investment casting, martensitic, pipe, pressure containing, steel castings,, ICS Number Code 77.140.80 (Iron and steel castings)

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