API seamless steel pipe various application

API seamless steel pipe is the American standard of petroleum and natural gas line pipe which transfers oil, gas and water to the petroleum or natural gas industry. API steel pipe includes seamless pipe and welded steel pipe. The line pipe end has flat end with threaded end and socket end. The connection way has end welding, coupling connection and socket connection. API steel seamless pipe is a kind of structural seamless steel tube, which is usually general structure and mechanical structure steel pipes.



API seamless steel pipe for structure is mainly applied in the chemical, petroleum, textile, medical, machinery and other industrial corrosion pipeline and components which are made of stainless steel through hot rolling or cold drawn processing. With the development of the line pipe steel plate technology and the progress of welding technology, the application range of welded pipe line pipe is gradually expanded especially in the large diameter welded pipe. In addition, due to cost, API welded line pipe has been dominant in the field of line pipe.

API seamless steel pipe for fluid is widely used for transporting the fluid like water, oil and natural gas etc. Except round pipe, other cross section shape of seamless steel pipes are called heterogenic API seamless steel pipe. Heterogenic API seamless steel pipe is widely utilized in all kinds of parts, tools and machinery spare parts. Compared to the round pipe, this pipe usually has larger inertia, section modulus and bending torsional capacity, which can greatly reduce the weight and save steel materials.