... : machined surface standard:Gr1,gr2,gr3,gr7,gr12,gr5 specification :MAX:1300mm pure and alloy titanium machined ringwe are a professional ... .0150.250.40 GradeTensile Strength,minYield Strength,0.2% OffsetElongation,min%KsiMpaminmaxKsiMpaKsiMpaGrade135240201384531024Grade250345402756545020Grade365450553808055018Grade480550704839566515Grade5130895120828__10