ASTM_A_609_-_A_609M_-_12.pdf

Designation:A609/A609M12Standard Practice forCastings,Carbon,Low-Alloy,and Martensitic StainlessSteel,Ultrasonic Examination Thereof1This standard is issued under the fixed designation A609/A609M;the number immediately following the designation indicates the yearof original adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.A superscript 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 practice2covers the standards and procedures forthe pulse-echo ultrasonic examination of heat-treated carbon,low-alloy,and martensitic stainless steel castings.1.2 This practice is to be used whenever the inquiry,contract,order,or specification states that castings are to besubjected to ultrasonic examination in accordance with Prac-tice A609/A 609M.1.3 This practice contains two procedures.Procedure A isthe original A609/A609M practice and requires calibrationusing a series of test blocks containing flat bottomed holes.Italso provides supplementary requirements for angle beamtesting.Procedure B requires calibration using a back wallreflection from a series of solid calibration blocks.NOTE1Ultrasonic examination and radiography are not directlycomparable.This examination technique is intended to complement GuideE94 in the detection of discontinuities.1.4 Supplementary requirements of an optional nature areprovided for use at the option of the purchaser.The supple-mentary requirements shall apply only when specified indi-vidually by the purchaser in the purchase order or contract.1.5 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard.The values stated ineach system may not be exact equivalents;therefore,eachsystem shall be used independently of the other.Combiningvalues from the two systems may result in non-conformancewith the standard.1.5.1 Within the text,the SI units are shown in brackets.1.5.2 This practice is expressed in both inch-pound unitsand SI units;however,unless the purchase order or contractspecifies the applicable M specification designation(SI units),the inch-pound units shall apply.1.6 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 ASTM Standards:3A217/A217M Specification for Steel Castings,MartensiticStainless and Alloy,for Pressure-Containing Parts,Suit-able for High-Temperature ServiceE94 Guide for Radiographic ExaminationE317 Practice for Evaluating Performance Characteristics ofUltrasonic Pulse-Echo Testing Instruments and Systemswithout the Use of Electronic Measurement Instruments2.2 Other Document:SNT-TC-1A Recommended Practice for Non-DestructiveTesting Personnel Qualification and Certification43.Ordering Information3.1 The inquiry and order should specify which procedure isto be used.If a procedure is not specified,ProcedureAshall beused.3.2 The purchaser shall furnish the following information:3.2.1 Quality levels for the entire casting or portionsthereof,3.2.2 Sections of castings requiring longitudinal-beamexamination,3.2.3 Sectionsofcastingsrequiringdualelementexamination,3.2.4 Sectionsofcastingsrequiringsupplementaryexamination,using the angle-beam procedure described inSupplementary Requirement S1 in order to achieve morecomplete examination,and1This practice is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsibility of SubcommitteeA01.18 on Castings.Current edition approved May 1,2012.Published June 2012.Originallyapproved in 1970.Last previous edition approved in 2007 as A609/A609M 91(2007).DOI:10.1520/A0609_A0609M-12.2For ASME Boiler and Pressure Vessel Code applications,see related Specifi-cation SA-609 of Section II of that Code.3For 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.4Available fromAmerican Society for Nondestructive Testing(ASNT),P.O.Box28518,1711 Arlingate Ln.,Columbus,OH 43228-0518,http:/www.asnt.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 3.2.5 Any requirements additional to the provisions of thispractice.PROCEDURE AFLAT-BOTTOMED HOLECALIBRATION PROCEDURE4.Apparatus4.1 Electronic Apparatus:4.1.1 An ultrasonic,pulsed,reflection type of instrumentthat is capable of generating,receiving,and amplifying fre-quencies of at least 0.5 to 5 MHz.4.1.2 The ultrasonic instrument shall provide linear presen-tati