ASTM_B_594_-_13.pdf

Designation:B59413Standard Practice forUltrasonic Inspection of Aluminum-Alloy Wrought Products1This standard is issued under the fixed designation B594;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope*1.1 This practice covers the requirements for pulse-echoultrasonic inspection and includes criteria used to defineapplicable quality levels of aluminum-alloy wrought productswhen performance of the ultrasonic test by the producer isspecified,or when ultrasonic inspection is performed by thepurchaser upon receipt.1.2 This practice is not applicable if plastic deformation isintroduced into the material after delivery.1.3 The ultrasonic test described in this practice is employedto detect internal discontinuities oriented in a direction parallelto,or nearly parallel to,the surface of the product.The test isperformed either by the immersion method or the contactmethod using pulsed longitudinal waves which are transmittedand received by a search unit containing either a single crystalor a combination of electrically interconnected multiple crys-tals.Ultrasonic tests employing either the through-transmissionor the angle-beam techniques are not included.NOTE1Ultrasonic tests employing angle-beam techniques requirespecial reference blocks,search units,and scanning procedures and aresubject to negotiation between the purchaser and the seller when such testsare required by the contract or purchase order.1.4 The values stated in inch-pound units are to be regardedas the standard.The values given in parentheses are mathemati-cal conversions to SI units which are provided for informationonly and are not considered standard.1.5 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 The following documents of the issue in effect on dateof material purchase form a part of this practice to the extentreferenced herein:2.2 ASTM Standards:2B881 Terminology Relating to Aluminum-and Magnesium-Alloy ProductsE114 Practice for Ultrasonic Pulse-Echo Straight-BeamContact TestingE127 Practice for Fabrication and Control of AluminumAlloy Ultrasonic Standard Reference BlocksE214 Practice for Immersed Ultrasonic Testing by the Re-flection Method Using Pulsed Longitudinal Waves(With-drawn 2007)3E317 Practice for Evaluating Performance Characteristics ofUltrasonic Pulse-Echo Testing Instruments and Systemswithout the Use of Electronic Measurement Instruments2.3 American Society for Nondestructive Testing Standard:ASNT Recommended Practice for Nondestructive TestingPersonnel Qualification and CertificationUltrasonicTesting Method,SNT-TC-1A42.4 National Aerospace Standard:NAS-410 Certification of Inspection Personnel53.Terminology3.1 DefinitionsRefer to Terminology B881 for definitionsof product terms used in this practice.4.Summary of Practice4.1 The product is inspected ultrasonically by scanningspecified entry surfaces with a beam of pulsed longitudinalwaves oriented in a direction perpendicular to the entrysurface.The ultrasound is transmitted into the product either bythe direct contact or the immersion method.During the scan,indications representing discontinuities are displayed on anA-scan screen of the test instrument and may be detected byauxiliary electronic monitors,if used.1This practice is under the jurisdiction of ASTM Committee B07 on LightMetals and Alloys and is the direct responsibility of Subcommittee B07.03 onAluminum Alloy Wrought Products.Current edition approved May 1,2013.Published June 2013.Originallyapproved in 1974.Last previous edition approved in 2009 as B594 09.DOI:10.1520/B0594-13.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3The last approved version of this historical standard is referenced onwww.astm.org.4Available fromAmerican Society for Nondestructive Testing(ASNT),P.O.Box28518,1711 Arlingate Ln.,Columbus,OH 43228-0518,http:/www.asnt.org.5Available from Aerospace Industries Association of America,Inc.(AIA),1000Wilson Blvd.,Suite 1700,Arlington,VA22209-3928,http:/www.aia-aerospace.org.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 4.2 When the test system sensitivity level is appropriatelyadjusted,detected discontinuities