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ASTM A638/A638M

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

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Organization: ASTM
Publication Date: 10 March 2000
Status: inactive
Page Count: 3
ICS Code (Iron and steel forgings): 77.140.85
ICS Code (Steel bars and rods): 77.140.60
scope:

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. Selection will depend upon design, service conditions, mechanical properties, and elevated temperature characteristics.

The values stated in either inch-pound units or SI (metric) units are to be regarded separately as standards; within the text and tables, the SI units are shown in [brackets]. The values stated in each system are not exact equivalents; therefore, each system must be used independent of the other. Combining values from the two systems may result in nonconformance with the specification.

Unless the order specifies an "M" designation, the material shall be furnished to inch-pound units.

Document History

March 1, 2020
Standard Specification for Precipitation Hardening Iron Base Superalloy Bars, Forgings, and Forging Stock for High-Temperature Service
This specification2 covers hot-finished or cold-finished precipitation hardening iron base superalloy bars, forgings, and forging stock for high-temperature service. The mechanical properties of...
April 1, 2010
Standard Specification for Precipitation Hardening Iron Base Superalloy Bars, Forgings, and Forging Stock for High-Temperature Service
This specification2 covers hot-finished or cold-finished precipitation hardening iron base superalloy bars, forgings, and forging stock for high-temperature service. The mechanical properties of...
April 1, 2010
Standard Specification for Precipitation Hardening Iron Base Superalloy Bars, Forgings, and Forging Stock for High-Temperature Service
This specification2 covers hot-finished or cold-finished precipitation hardening iron base superalloy bars, forgings, and forging stock for high-temperature service. The mechanical properties of...
ASTM A638/A638M
March 10, 2000
Standard Specification for Precipitation Hardening Iron Base Superalloy Bars, Forgings, and Forging Stock for High-Temperature Service
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...
March 10, 2000
Standard Specification for Precipitation Hardening Iron Base Superalloy Bars, Forgings, and Forging Stock for High-Temperature Service
This specification(Footnote 2) covers hot-finished or cold-finished precipitation hardening iron base superalloy bars, forgings, and forging stock for high-temperature service. The mechanical...
January 15, 1995
Standard Specification for Precipitation Hardening Iron Base Superalloy Bars, Forgings, and Forging Stock for High-Temperature Service
A description is not available for this item.
October 15, 1992
STANDARD SPECIFICATION FOR PRECIPITATION HARDENING IRON BASE SUPERALLOY BARS, FORGINGS, AND FORGING STOCK FOR HIGH- TEMPERATURE SERVICE
A description is not available for this item.
February 27, 1987
STANDARD SPECIFICATION FOR PRECIPITATION HARDENING IRON BASE SUPERALLOY BARS, FORGINGS, AND FORGING STOCK FOR HIGH- TEMPERATURE SERVICE (R-1991) (E1-1991)
A description is not available for this item.
July 30, 1982
STANDARD SPECIFICATION FOR PRECIPITATION HARDENING IRON BASE SUPERALLOY BARS, FORGINGS, AND FORGING STOCK FOR HIGH- TEMPERATURE SERVICE
A description is not available for this item.

References

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