... welded pipe 1)Standard:ASTM B337, B338, B861, B862 2)Material:GR1,2,3,5,7, ... 9, etc 3)Dia. 4~114mm ASTM B337 titanium welded pipeOur titanium tubes are manufactured according to ASTM ... Alloy Tube Titanium Tube, Titanium pipe, Titanium tubing pipe SpecificationsStandardASTM B337, B338, B861, B862MaterialGR1,GR2,GR3,GR5,GR9Dia.φ4~114mmThicknessδ0 ...