ASTM-A891:1998 Edition

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A891-98 Standard Specification for Precipitation Hardening Iron Base Superalloy Forgings for Turbine Rotor Disks and Wheels

Published By	Publication Date	Number of Pages
ASTM	1998	3

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Description

ASTM A891-98

Historical Standard: Standard Specification for Precipitation Hardening Iron Base Superalloy Forgings for Turbine Rotor Disks and Wheels

ASTM A891

Scope

1.1 This specification covers precipitation hardening iron base superalloy forgings which are primarily intended for use as turbine rotor disks and wheels.

1.2 Two heat treatments are covered. Selection will depend upon design, service conditions, mechanical properties, and elevated temperature characteristics.

1.3 All of the provisions of Specification A788, apply, except as amended herein.

1.4 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.

Keywords

age hardened; creep; elevated temperature service; forging; alloy steel-turbine disk; forging; alloy steel-turbine wheel; precipitation hardened; stress rupture; superalloy

ICS Code

ICS Number Code n/a

DOI: 10.1520/A0891-98

Additional information

Standard Title	A891-98 Standard Specification for Precipitation Hardening Iron Base Superalloy Forgings for Turbine Rotor Disks and Wheels
Published Code	ASTM
Publication Date	1998
Pages Count	3