At present, the manufacturing process of titanium pipe fittings on the market has basically matured, but the use of titanium tubes has been subject to cost constraints, especially for thin-walled tubes, tubes of higher strength, longer tubes and other specific requirements of the pipe fittings, titanium seamless tubes are more difficult to produce, equipment complexity, cycle time is long, and the rate of finished products is low. Therefore, titanium welded pipe fittings came into being.

Titanium tubing is not corrosion-free in the environment. Titanium tubing manufacturers have found that pure titanium condenser tubes have serious corrosion perforations and edge ruptures on both the inner and outer surfaces after 15 years. In addition, in the process of titanium tube assembly and application, it is often necessary to bend, weld, end processing and other processing of the tube. Due to the high flexure-elasticity ratio of titanium pipe fittings, the rebound is obvious when bending, and the excessive rebound leads to difficult control of pipe geometry and precision.