... , Gr5, Gr7, Gr9, Gr12, Gr23 Product Description ti bar1. Grade: Gr1, Gr2, Gr5, Gr7, Gr9, Gr12, Gr23 2. ... good elongation and excellent corrosion-resistance. (2)cp grade 2 is used most widely in the commercially ... mechanical, physical and chemical properties. (6)Alloy grade 7 add little palladium in cp titanium and it ... , of course it costs higher. (7)Alloy grade 9(Ti-3AL-2.5V)is the most widely uesd ...