... GR12 etc 2.standard:ASTM B/ASME SB861,337 and 338 Titanium pipe and tube1.material:Gr1,Gr2,Gr3,Gr4,Gr5, GR7 GR9 ... GR11 GR12 etc 2.standard:ASTM B/ASME SB861,337 and ... ,Ti6AL4V,is one of the most popular Ti alloys because of itscomprehensive mechanical,physical and chemical properties.Alloy Gr7,add little palladium ...