ASTM International - ASTM A418/A418M-10
Standard Practice for Ultrasonic Examination of Turbine and Generator Steel Rotor Forgings
|Publication Date:||1 November 2010|
|ICS Code (Non-destructive testing of metals):||77.040.20|
|ICS Code (Iron and steel forgings):||77.140.85|
significance And Use:
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,... View More
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.View Less
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.