【英文标准名称】:StandardPracticeforUltrasonicExaminationofSteelForgings
【原文标准名称】:钢锻件超声检验用标准实施规程
【标准号】:ASTMA388/A388M-2010
【标准状态】:现行
【国别】:
【发布日期】:2010
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:A01.06
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:(超声)斜探法检验;后反射;缺陷接地结构;参考组件;直射波检查;超声波;锻件;重型钢材/应用;钢锻件;钢超声波测试
【英文主题词】:anglebeamexamination;back-reflection;DGS;reference-block;straightbeamexamination;ultrasonic;Forgings;Heavysteelmaterials/applications;Steelforgings;Ultrasonictesting--steel
【摘要】:Thispracticeshallbeusedwhenultrasonicinspectionisrequiredbytheorderorspecificationforinspectionpurposeswheretheacceptanceoftheforgingisbasedonlimitationsofthenumber,amplitude,orlocationofdiscontinuities,oracombinationthereof,whichgiverisetoultrasonicindications.Theultrasonicqualitylevelshallbeclearlystatedasorderrequirements.1.1Thispracticecoverstheexaminationproceduresforthecontact,pulse-echoultrasonicexaminationofsteelforgingsbythestraightandangle-beamtechniques.ThestraightbeamtechniquesincludeutilizationoftheDGS(DistanceGain-Size)method.SeeAppendixX3.1.2Thispracticeistobeusedwhenevertheinquiry,contract,order,orspecificationstatesthatforgingsaretobesubjecttoultrasonicexaminationinaccordancewithPracticeA388/A388M.1.3ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.4Thisspecificationandtheapplicablematerialspecificationsareexpressedinbothinch-poundunitsandSIunits.However,unlesstheorderspecifiestheapplicablex201C;Mx201D;specificationdesignation[SIunits],thematerialshallbefurnishedtoinch-poundunits.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H26
【国际标准分类号】:77_040_20;77_140_85
【页数】:8P.;A4
【正文语种】: