... Titanium Tube for Heat Exchanger 2.Standard: ASTM B338,ASME SB338,ASTM B337, ASME SB337,ASTM B861,ASME SB861 1. Product Name: Gr2 ASTMB 338 Titanium Tube ... ASTM B338,ASME SB338,ASTM B337, ASME SB337,ASTM B861,ASME SB861 SpecificationMaterialApplicationASME SB338GR.2, GR.7, GR.9, GR12Titanium and titanium alloy tubes ... and heat exchange projects.ect Gr2 ASTM B338 Titanium Tubes for Heat Exchanger