Titanium and titanium tube welded pipe common defects and precautionary measures

Titanium equipment is mainly used in petroleum, chemical, and thermal power plants and other industrial sectors. The titanium fittings (such as elbows, tees and reducers, etc.) is connected to the tube is an important part. According to several surveys, titanium equipment (due to their special performance. Used widely) in connection with the pipe fittings high accident rate, which is where the steep section of the working conditions change. More serious stress related.
Materials Welding Defect Analysis
Performance and Features
Allotrope titanium transition occurs at 885 ℃. In the following 885 ℃ is hcp lattice structure, called a titanium (commercially pure titanium as such, this paper focuses on the object). More than 885 ℃ for the body-centered cubic lattice structure called J3 titanium. With elements of heterogeneous transition temperature titanium alloy alloying elements are added with the type and content varies. Commercially pure titanium according to its impurities (mainly oxygen and iron) content and the intensity differences arising therefrom into TA1, TA2, TA3 three grades. They have good corrosion resistance, ductility and toughness, but its workability, high weldability requirements.