作者:标准资料网 时间:2024-05-21 13:29:47   浏览:8539   来源:标准资料网

【英文标准名称】:StandardReferenceRadiographsforTinBronzeCastings
【原文标准名称】:锡青铜铸件用参考射线照片
【标准号】:ASTME310-1999(2004)e1
【标准状态】:现行
【国别】:
【发布日期】:1999
【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】:E07.02
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:射线摄影;锡;试验;青铜;金属;合金;无损检验;铸件;铜合金
【英文主题词】:brass;bronze;castings;copper;discontinuities;gammaray;referenceradiographs;tinbronze;valvebronze;x-ray
【摘要】:1.1Thesereferenceradiographsarereproductionsoforiginalradiographsandillustratevarioustypesanddegreesofdiscontinuitiesoccurringintinbronzeandrelatedtypesofalloys.ThereferenceradiographfilmsareanadjuncttothisdocumentandmustbepurchasedseparatelyfromASTMInternationalifneeded.Theyareintendedtoprovidethefollowing:1.1.1Aguidetotherecognitionofcommondiscontinuitiesandtheirdifferentiationbothastotypeandseveritylevel.1.1.2Astandardnomenclatureforreferenceinacceptancestandards,specificationsanddrawings.1.1.3Asourceofreferenceradiographsfromwhichmanufacturersandpurchasersmay,bymutualagreement,selectparticularradiographstoserveasstandardsrepresentingminimumacceptability.Thestandardssoestablishedareidentifiedbyanalphabeticdefecttypeandseveritylevel(orclass)designation.1.2Theoriginalradiographsareofdiscontinuitiesinsandcast88:8:4Cu-Sn-Zn,"G"type,bronzealloyplates.Thesediscontinuitiesarerepresentativeofthosefoundinwidesolidificationrangecopper-tinbasealloys.ThefollowingASTMspecificationsillustratealloyscoveredbythesestandards;however,itisintendedthatthesereferenceradiographsalsoapplytorelatedGovernmentandcommercialmaterialspecifications:ValvebronzecastingsB61CompositionbronzeorouncemetalcastingsB62TinbronzesandcastingsB584LeadedredbrasssandcastingsB584Copper-basealloycentrifugalcastings(asapplicable)B271SimilartoMIL-B-16541.SimilartoMIL-B-16444.