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ASTM A418/A418M-10

Historical Revision

Standard Practice for Ultrasonic Examination of Turbine and Generator Steel Rotor Forgings

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1.1 This practice for ultrasonic examination covers turbine and generator steel rotor forgings covered by Specifications A469/A469M, A470/A470M, A768/A768M, and A940/A940M. This standard shall be used for contact testing only.

1.2 This practice describes a basic procedure of ultrasonically inspecting turbine and generator rotor forgings. It does not restrict the use of other ultrasonic methods such as reference block calibrations when required by the applicable procurement documents nor is it intended to restrict the use of new and improved ultrasonic test equipment and methods as they are developed.


This practice shall be used when ultrasonic inspection is required by the order or specification for inspection purposes where the acceptance of the forging is based on limitations of the number, amplitude, or location of discontinuities, or a combination thereof, which give rise to ultrasonic indications.

The acceptance criteria shall be clearly stated as order requirements.

SDO ASTM: ASTM International
Document Number A418
Publication Date Nov. 1, 2010
Language en - English
Page Count 8
Revision Level 10
Supercedes
Committee A01.06
Publish Date Document Id Type View
May 1, 2024 A0418_A0418M-24 Revision
May 1, 2015 A0418_A0418M-15 Revision
Nov. 1, 2010 A0418_A0418M-10 Revision
May 1, 2009 A0418_A0418M-09 Revision
May 1, 2007 A0418_A0418M-07 Revision
Sept. 1, 2005 A0418_A0418M-05 Revision
March 1, 2020 A0418_A0418M-15R20 Reaffirmation