... & widely usage 3,multi model for choice Titanium tube--round tube:1.material:Gr1,Gr2,Gr3, ... 2 is widely used in the commerciallu pure Titanium.CP grade 3 is almost only used in ... comprehensivemechanicl,physical and chemical properties.Alloy Gr7,add little palladium in cp Titanium and it has the most ... excellent corrosion-resistence Alloy Gr9,Ti3AL2.5v,is ...