... . Material: titanium and titanium alloys Pure titanium grade: GR1, GR2, GR3, GR4 Titanium alloy grade: GR5 (6% Al, 4%V)2. Standard: ASTMB265, ASTM F136 ... , AMS 4900G3. Certification: ISO9001-2000Titanium sheet range: Gr1 Gr2 titanium sheetStandard: ASTM B265,AMS 4928Qgrade:Gr1,Gr2,Gr3,Gr4,Gr5,Gr7,Gr9 ...