Active standard | Published: 01/05/2023

ASTM A638/A638M-23

Standard Specification for Precipitation Hardening Iron Base Superalloy Bars, Forgings, and Forging Stock for High-Temperature Service

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Detail information

Designation: ASTM A638/A638M-23

Publication date: 01/05/2023

Pages: 3

Country: American technical standard

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Anotation

This specification covers hot-finished or cold-finished precipitation hardening iron base superalloy bars, forgings, and forging stock for high-temperature service. The mechanical properties of these alloys are developed by suitable solution treating and precipitation hardening treatments. Two grades of iron base alloy are covered; Grade 660 and Grade 662 (bars and forgings). The material shall meet the requirements as to stress rupture properties specified. The material shall conform to the chemical, mechanical, and metallurgical properties requirements specified.

Keywords:
precipitation hardening superalloy steel, superalloy steel bars, superalloy steel billets, superalloy steel forgings, temperature service applications (high),, ICS Number Code 77.140.60 (Steel bars and rods),77.140.85 (Iron and steel forgings)

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