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This practice covers a basic procedure of ultrasonically inspecting cylindrical forgings with bores from the bore surface.
Formerly under the jurisdiction of Committee A01 on Steel, Stainless Steel, and Related Alloys, this practice was withdrawn in May 2021. This standard is being withdrawn without replacement because there has been no activity in the subcommittee for many years, and no one in the subcommittee is currently aware of its usage in industry.
1.1 This practice covers a basic procedure of ultrasonically inspecting cylindrical forgings with bores from the bore surface.
1.2 This practice applies to the manual testing mode. It does not restrict the use of other testing modes, such as mechanized or automated.
1.3 This practice applies to cylindrical forgings having bore sizes equal to or greater than 2.5 in. [64 mm].
1.4 This practice is expressed in inch-pound and SI units; however, the inch-pound units shall apply unless the purchase order or contract specifies the applicable “M” specification designation (SI units). The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.
1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
A788/A788M Specification for Steel Forgings, General Requirements
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ASTM A939 / A939M-15(2020), Standard Practice for Ultrasonic Examination from Bored Surfaces of Cylindrical Forgings (Withdrawn 2021), ASTM International, West Conshohocken, PA, 2020, www.astm.orgBack to Top