... Dia:4mm~320mm, L< 15m Wall Thickness:0. Titanium Tubes: Grade:GR1,GR2,GR5(Ti6AL4V),GR7,GR12 Standard:ASTM Outer Dia:4mm ... Wall Thickness:0.4~10mmTitanium tubes and pipe:Material:Gr1, Gr2, Gr3, Gr4, Gr5, Gr7, Gr9, Gr11, Gr12 , Gr23,TI6AL4V ELI ... -resistance. Cp garde 2 is widely used in the commercially pure titanium. Cp grade 3 is almost only used in pressure vessel ...