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This test method deals with the procedures for the standard practice asstm performing contact, pulse-echo ultrasonic examination ast, austenitic steel forgings by the straight and angle beam techniques. This practice does not cover the ultrasonic examination of nonmagnetic retaining ring forgings. The instrument used for this test method shall be the electronic pulsed reflection type. Prior to examination, specimens shall be heat treated and machined to a rectangular, parallel, or concentric surface configuration, and its surface shall be free of extraneous material such as loose scale, paint, and dirt.
ASTM A / AM – 15 Standard Practice for Ultrasonic Examination of Austenitic Steel Forgings
Calibration of the apparatus shall be done by either the single-block method or distance-amplitude curve method. Choice of method to be employed shall be determined by the test metal distance involved.
Quality levels for acceptance, established asym the type and amount of indication asmt, are detailed thoroughly. This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application.
ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date. The supplementary asym shall apply only when specified individually by the purchaser in the purchase order or contract.
ASTM A/AM – 15 – Standard Practice for Ultrasonic Examination of Austenitic Steel Forgings
The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the practice, the SI units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the a7445.
Combining values from the two systems may result in nonconformance with the standard.
It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. ICS Number Code Link to Active This link a75 always route to the current Active version of the standard.