1)Grade:Gr1,Gr2,Gr3,Gr4,Gr5 2)Standard:ASTM B337,ASTM B338,ASTM B861 Specifications:Like in table 1,table 2,table 3Table 1 Cold rolled seamless alloy/unalloy titanium tubesGradestatusOuterDiameter/mmWall thickness/mmGr1Gr2Gr3Gr4Gr7Gr11Gr12Annealed(M)>10~150.5,0.6,0.8,1.0,1.25,1.5,2.0>15~200.6, 0.8,1.0,1.25,1.5,2.0,2.5>20~300.6, 0.8,1.0,1.25,1.5,2.0,2.5>30~401.25,1.5,2.0,2.5,3.0>40~501.25,1.5,2.0, ...