1.1 This practice2 covers the examination procedures for the contact, pulse-echo ultrasonic examination of steel forgings by the straight and angle-beam techniques. The straight beam techniques include utilization of the DGS (Distance Gain-Size) method. See Appendix X3.
1.2 This practice is to be used whenever the inquiry, contract, order, or specification states that forgings are to be subject to ultrasonic examination in accordance with Practice A388/A388M.
1.3 Supplementary requirements of an optional nature are provided for use at the option of the purchaser. The supplementary requirements shall apply only when specified individually by the purchaser in the purchase order or contract.
1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
1.5 This specification and the applicable material specifications are expressed in both inch-pound units and SI units. However, unless the order specifies the applicable “M” specification designation [SI units], the material shall be furnished to inch-pound units.
1.6 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.
1.7 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.
ASTM A388/A388M-19 Referenced Document
ASTM A469/A469M Standard Specification for Vacuum-Treated Steel Forgings for Generator Rotors*, 2022-03-01 Update
ASTM A745/A745M Standard Practice for Ultrasonic Examination of Austenitic Steel Forgings
ASTM A788/A788M Standard Specification for Steel Forgings, General Requirements
ASTM E1065/E1065M Standard Practice for Evaluating Characteristics of Ultrasonic Search Units*, 2020-01-15 Update
ASTM E317 Standard Practice for Evaluating Performance Characteristics of Ultrasonic Pulse- Echo Examination Instruments and Systems Without the Use of Electronic Measurement Instruments
ASTM E428 Standard Practice for Fabrication and Control of Metal, Other than Aluminum, Reference Blocks Used in Ultrasonic Testing*, 2024-04-22 Update
ASTM A388/A388M-19 history
2023ASTM A388/A388M-23 Standard Practice for Ultrasonic Examination of Steel Forgings
2019ASTM A388/A388M-19 Standard Practice for Ultrasonic Examination of Steel Forgings
2018ASTM A388/A388M-18 Standard Practice for Ultrasonic Examination of Steel Forgings
2016ASTM A388/A388M-16a Standard Practice for Ultrasonic Examination of Steel Forgings
2016ASTM A388/A388M-16 Standard Practice for Ultrasonic Examination of Steel Forgings
2015ASTM A388/A388M-15 Standard Practice for Ultrasonic Examination of Steel Forgings
2011ASTM A388/A388M-11 Standard Practice for Ultrasonic Examination of Steel Forgings
2010ASTM A388/A388M-10 Standard Practice for Ultrasonic Examination of Steel Forgings
2009ASTM A388/A388M-09 Standard Practice for Ultrasonic Examination of Steel Forgings
2008ASTM A388/A388M-08 Standard Practice for Ultrasonic Examination of Steel Forgings
2007ASTM A388/A388M-07 Standard Practice for Ultrasonic Examination of Heavy Steel Forgings
2005ASTM A388/A388M-05 Standard Practice for Ultrasonic Examination of Heavy Steel Forgings
2004ASTM A388/A388M-04 Standard Practice for Ultrasonic Examination of Heavy Steel Forgings
2003ASTM A388/A388M-03 Standard Practice for Ultrasonic Examination of Heavy Steel Forgings
2001ASTM A388/A388M-01 Standard Practice for Ultrasonic Examination of Heavy Steel Forgings