ASTM-A940 2001

$35.75

A940-96(2001) Standard Specification for Vacuum Treated Steel Forgings, Alloy, Differentially Heat Treated, for Turbine Rotors

Published By	Publication Date	Number of Pages
ASTM	2001	5

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Categories: 77.140.85 - Iron and steel forgings, ASTM

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Description

ASTM A940-96-Reapproved2001

Historical Standard: Standard Specification for Vacuum Treated Steel Forgings, Alloy, Differentially Heat Treated, for Turbine Rotors

ASTM A940

Scope

1.1 This specification covers vacuum treated, alloy steel forgings, differentially heat treated for turbine rotors.

1.2 Differential heat treatment of a rotor forging involves subjecting two portions of the forging concurrently to two different austenitizing temperatures followed by two different cooling rates for normalizing and quenching, and then tempering, to achieve creep resistance in the high pressure (HP) portion and high toughness in the low pressure (LP) portion.

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

Keywords

differential heat treatment; steel forgings; turbine rotor; vacuum treated steel

ICS Code

ICS Number Code 77.140.85 (Iron and steel forgings)

DOI: 10.1520/A0940-96R01

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents Ordering Information General Requirements Manufacture
2	Chemical Composition Mechanical Properties TABLE 1
3	Nondestructive Tests Stability Test Retreatment Dimensions, Tolerances, and Finish Certification and Reports Package Marking, Packing, and Loading TABLE 2 TABLE 3
4	Keywords

Additional information

Standard Title	A940-96(2001) Standard Specification for Vacuum Treated Steel Forgings, Alloy, Differentially Heat Treated, for Turbine Rotors
Published Code	ASTM
Publication Date	2001
Pages Count	5
ICS Codes	77.140.85 - Iron and steel forgings