Designation:B381−13StandardSpecificationforTitaniumandTitaniumAlloyForgings1ThisstandardisissuedunderthefixeddesignationB381;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thisspecification2covers39gradesofannealedtita-niumandtitaniumalloyforgingsasfollows:1.1.1GradeF-1—UNSR50250.Unalloyedtitanium,1.1.2GradeF-2—UNSR50400.Unalloyedtitanium,1.1.2.1GradeF-2H—UNSR50400.Unalloyedtitanium(Grade2with58ksi(400MPa)minimumUTS),1.1.3GradeF-3—UNSR50550.Unalloyedtitanium,1.1.4GradeF-4—UNSR50700.Unalloyedtitanium,1.1.5GradeF-5—UNSR56400.Titaniumalloy(6%aluminum,4%vanadium),1.1.6GradeF-6—UNSR54520.Titaniumalloy(5%aluminum,2.5%tin),1.1.7GradeF-7—UNSR52400.Unalloyedtitaniumplus0.12to0.25%palladium,1.1.7.1GradeF-7H—UNSR52400.Unalloyedtitaniumplus0.12to0.25%palladium(Grade7with58ksi(400MPa)minimumUTS),1.1.8GradeF-9—UNSR56320.Titaniumalloy(3%aluminum,2.5%vanadium),1.1.9GradeF-11—UNSR52250.Unalloyedtitaniumplus0.12to0.25%palladium,1.1.10GradeF-12—UNSR53400.Titaniumalloy(0.3%molybdenum,0.8%nickel),1.1.11GradeF-13—UNSR53413.Titaniumalloy(0.5%nickel,0.05%ruthenium),1.1.12GradeF-14—UNSR53414.Titaniumalloy(0.5%nickel,0.05%ruthenium),1.1.13GradeF-15—UNSR53415.Titaniumalloy(0.5%nickel,0.05%ruthenium),1.1.14GradeF-16—UNSR52402.Unalloyedtitaniumplus0.04to0.08%palladium,1.1.14.1GradeF-16H—UNSR52402.Unalloyedtitaniumplus0.04to0.08%palladium(Grade16with58ksi(400MPa)minimumUTS),1.1.15GradeF-17—UNSR52252.Unalloyedtitaniumplus0.04to0.08%palladium,1.1.16GradeF-18—UNSR56322.Titaniumalloy(3%aluminum,2.5%vanadium)plus0.04%to0.08%palladium,1.1.17GradeF-19—UNSR58640.Titaniumalloy(3%aluminum,8%vanadium,6%chromium,4%zirconium,4%molybdenum),1.1.18GradeF-20—UNSR58645.Titaniumalloy(3%aluminum,8%vanadium,6%chromium,4%zirconium,4%molybdenum)plus0.04to0.08%palladium,1.1.19G...
