... Grades are AvailableSize scope: as customer's requirement Materials: titanium Grade: Gr1, Gr2, Gr3, Gr5, Gr7, ... Grade 1: unalloyed titanium .Grade 2: unalloyed titanium .Grade 3: unalloyed titanium .Grade 4: unalloyed titanium .Grade 5: titanium alloy (6% ... aluminum, 4% vanadium) .Grade 7: unalloyed titanium ...