titanium bars medical grade5 Grade:Gr5 Standard:ASTM B348,ASTM F67 titanium bars medical grade51. Material: Pure titanium or titanium alloy .2. Grade:Gr1,Gr2,Gr3,Gr4,Gr5 ... ,Ti6Al4VELI,Gr7,Gr9,Gr11,Gr12, Gr23.3. Standard:ASTM B348,ASTM F67,ASTM F136 ... The specification would be changed by the customers' requirements. titanium bars medical grade 5