... ) Standard: ASTM B337, ASTM B338, ASTM B861 Spec: Grade 1, Grade 2, Grade 3, Grade Product Description Ti Pipe,Ti Tube, Titanium Alloy Tube ... : ASTM B337, ASTM B338, ASTM B861 Specification: Grade 1, Grade 2, Grade 3, Grade 4, Grade 5, Grade 5 ELI, Grade 7, Grade 9 ect. Size: OD10mm-OD 120mm ...