... ,Gr9,Gr12 3. Professional Tech Support Forged Gr2 Titanium flange ASTM B381 for Industry1. Material:Gr1,Gr2,Gr5,Gr7,Gr9,Gr12 2 ... ,CL600,CL900,CL1500 5. Working temperature: -60°C~250°C6. Flange surface: FF,RF,TG,RJ etc7.Quality control: Ultrasonic Testing ...