titanium coil(heat exchanger) 1)Standard:ASTM B337, B338, B861, B862 2) ... ,5,7,9, etc 3)Dia. 4~114mm titanium coil(heat exchanger)Our Titanium Tube 4 heat exchanger is manufactured according to ASTM ... and some other world-wide recognized accords.Titanium Alloy Tube Titanium Tube, Titanium pipe, Titanium tubing pipe Specifications of titanium tubeStandardASTM B337, B338, B861, B862MaterialGR1,GR2 ...