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ASTM A 940/A940M : 2006 : R2016

Withdrawn

Withdrawn

A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

Standard Specification for Vacuum Treated Steel Forgings, Alloy, Differentially Heat Treated, for Turbine Rotors (Withdrawn 2017)

Available format(s)

Hardcopy , PDF

Withdrawn date

15-11-2017

Language(s)

English

Published date

01-03-2016

€59.22
Excluding VAT

CONTAINED IN VOL. 01.05, 2017 Defines vacuum treated, alloy steel forgings, differentially heat treated for turbine rotors.

Committee
A 01
DevelopmentNote
Supersedes ASTM A 940 (03/2006)
DocumentType
Standard
Pages
4
ProductNote
Reconfirmed 2016
PublisherName
American Society for Testing and Materials
Status
Withdrawn
Supersedes

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

1.2Differential 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.2

1.3The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

ASTM A 418/A418M : 2015 : REDLINE Standard Practice for Ultrasonic Examination of Turbine and Generator Steel Rotor Forgings
ASTM A 275/A275M : 2015-05 PRACTICE FOR MAGNETIC PARTICLE EXAMINATION OF STEEL FORGINGS

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