ASTM A 940/A940M : 2006 : R2016
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Standard Specification for Vacuum Treated Steel Forgings, Alloy, Differentially Heat Treated, for Turbine Rotors (Withdrawn 2017)
Hardcopy , PDF
15-11-2017
English
01-03-2016
Important note : Users cannot be edited or removed once added to your Multi user PDF.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Withdrawn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 |
Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.