Titanium Rods and Bars: 1.Grade: Gr1,Gr2,Gr3,Gr4,Gr5,Gr7,Gr9,Gr12 etc. 2.Standard:ASTM B348 GRADESPECIFICATIONSROUND BARSASTM AMSDIAMETER RANGE CONDITION3.0 ... rolled, Annealed,Centerless Ground Surface Commercial Pure Titanium ASTM B348 Gr1,2,3,4ASTM F67 Gr1,2,3,4 -----Over 50.8 – 300mmForged, Annealed ...