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ASTM A / AM – 15 Standard Practice for Ultrasonic Examination of Austenitic Steel Forgings

ASTM does not give any warranty express or implied or make any representation qstm the contents of this abstract are accurate, complete or up to date.

The values stated in either inch-pound units or SI units are to be regarded separately as standard. Combining values from the two systems may result in nonconformance with the standard. This abstract is a brief summary of the referenced standard. Historical Version s – view previous versions of standard.


Standard Practice for Ultrasonic Examination of Austenitic Steel Forgings

This practice does not cover the ultrasonic examination of nonmagnetic retaining ring forgings. Link to Active This link will always route to the current Active version of the standard. Choice of method to be employed shall be determined by the test metal distance involved. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

This test method deals with the procedures for the standard practice of performing contact, pulse-echo ultrasonic examination of austenitic steel forgings by the straight and angle beam techniques. 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.

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.


Quality levels for acceptance, established by the type and amount of indication present, are detailed thoroughly. 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.

Within the practice, the SI units are shown in brackets. The instrument used for this test method shall be the electronic pulsed reflection type. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other.

ICS Number Code The supplementary requirements shall apply only when specified individually by the purchaser in the purchase order or contract. Calibration of the apparatus shall be done by either the single-block method or distance-amplitude curve method.