titanium tube 1.Standard: ASTM / ASME SB 160 / 164 2.marerial:high quality material 3. used in motorc medical part1. ... ), B 8M (SS 316), B 8 T (SS 321), A 2, A 4, • Standard: ASTM / ASME SB 160 / 164 / 425 / 166 ... GR. • Grade : B 6, B 7/ B 7M, B 16, 2, 2HM, 2H, GR 6, B 7, B 7M 1. titanium ...