... .0,1.25,1.5,2.0,2.5>20~300.6, 0.8,1.0,1.25,1.5,2 ... .5,3.0,3.5,4.0,4.5 Welded tubes GradestatusOuterDiameter/mmWall thickness/mmGr1Gr2Gr3Gr4Gr7Gr11Gr12Annealed(M)160.5,0.6,0 ... .6,0.8,1.0,1.25,1.5>15~300.5,0.6,0.8,1.0,1.25,1 ... >=500380~550>=18Gr7>=400275~450>=20Gr11>=240140~310>=24Gr12>=460>=300>=18 Industrial titanium alloy tube