Pipeline steel pipes are often used to transport oil, gas or water to oil and gas industrial enterprises. Pipeline steel pipe includes seamless pipe and welded pipe, and the pipe end can be flat end, threaded end and bevel end; its connection mode is end welding, coupling connection, socket connection, etc.

Application of pipeline steel pipe: used for gas, water and oil transportation in petroleum and natural gas industry.

API Spec 5L pipeline steel pipe specification is compiled and issued by American Petroleum Institute, and is commonly used all over the world. The main materials of the pipeline steel pipe are L245, L290, L360, L415, l480, API 5L gr. B, X42, X46, X56, X65, X70, X80, X100 and so on steel grades.