1. Titanium Screw, Titanium Bolt, Titanium Powder 2. Grade: Gr.1, Gr.2, ... 4. SGS Titanium Screw, Titanium Bolt, Titanium Powder This specification covers annealed titanium and titanium alloy strip ... molybdenum, 3 % aluminum, 2.7 % niobium, 0.25 % silicon),20 Grade 23—Titanium alloy (6 % aluminum, 4 % vanadium ... .6 % vanadium, 0.5 % iron, 0.3 % silicon),33 Grade 36—Titanium alloy (45 % niobium),34 Grade 37 ...