... B338,ASTM B337,ASME SB338,ASTM B861 4)Dia2~114mm Titanium pipeMaterialUnalloy titanium and alloy titaniumGradeGr1,Gr2,Gr3,Gr4,Gr5,Gr6,Gr7 ... ,Gr9,Gr10,Gr11,Gr12,BT1-00,BT1-0 Technology StandardOut Diameter (mm ... .2,0.3,0.5,0.6>5~100.3, 0.5,0.6,0.8,1.0,1.25>10~150.5,0.6,0.8,1.0,1 ... 4.0,4.5160.5,0.6,0.8,1.0190.5,0.6,0.8,1.0,1.2525,270.5,0.6,0.8,1.0,1 ...