Grade Gr1,Gr2 ,Gr3 ,Gr4 ,Gr5 ,Gr7, Gr9,Gr12StandardsGB/T 3620.1—2007,ASTM B348,ASTM B381,ASTM F67,AMS 4921,AMS 4928,AMS 4930Length (mm) </= 2900Diameter (mm)200-720Weight (kg)150-4500Diameter Tolerance(mm)+/-20mmWeight Tolerance (kg)+/-5%The processing Titanium Sponge→compaction→manufacture of electrodes→VAR→dry..