Relevant standards (GB/T 3620.1: - 94 titanium and titanium alloy nameplate and chemical composition of GB/T 3625-95 heat exchanger and with titanium and titanium alloy tubes of condenser TA1, TA2, TA3 are pure titanium, which has high mechanical performance, excellent performance, and stamping on various forms of welding and welding joint intensity can reach 90% of the intensity of metal matrix, and the cutting performance is good. Titanium tube of sulfide and ammonia chloride, high corrosion resistance. Titanium of corrosion resistance than aluminum alloy, stainless steel, nickel-based alloy is high. Titanium water resistant performance also strong impact.