... ,Gr2,Gr5,Gr7,Gr9,Gr12 3. Professional Tech Support Gr1 titanium flange for pipe 1. Material:Gr1,Gr2,Gr5,Gr7,Gr9,Gr12 ... ,CL600,CL900,CL1500 5. Working temperature: -60°C~250°C6. Flange surface: FF,RF,TG,RJ etc 7.Quality control: Ultrasonic ... : ASME/ANSI B16.5,DIN2630~2633,BS etcChemical Composition of Titanium in each Grade GradeELEMENT COMPOSITION , %TiALVFeCNHOOthers,maxGrade 1Balance--0.200.080 ...