... ASTM B381 Titanium Flange Standard: ASTM B381, ASTMF67,ASTMF136,ASTMF1295 Grade: Gr1-Gr5 Application: Industry 1)SpecificationName: Gr2 ASTM B381 Titanium FlangeApplication: Industrial ... ,Gr2,Gr3,Gr4 Gr5StandardASTM B381, ASTMF67,ASTMF136,ASTMF1295Surface QualityPolishedTechnicalForgedFeaturesLow density, High specific strength, Excellent corrosive resistance, Rustless ,Good thermal stability, ...