... Gr.1, Gr.2, Gr.3, Gr.4, Ti-6Al-7Nb MATERIAL GRADESTANDARDTA0,TA1,TA2,TA3,TC4GB/T 13810 ... ,Grade2,Grade3,Grade4ASTM F67-95 TiNi Ti-0.2Pd Ti-MoASTM B348REMARKS MATERIAL TC4, Ti-6Al-4V ELI, Ti-6Al-4V, Gr.1, Gr ... .2, Gr.3, Gr.4, Ti-6Al-7Nb. SPE 2.0~20mm×≤3700mm STANDARD GB/T13810-2007, ASTM F136 ... 95, ASTM F1295-05. TOLERANCE h6,h7 ,h8 STRAIGHTNESS ≤0.5mm/m OUT-OF-ROUND HALF OF DIAMETER TOLERANCE SURFACE ...