Importance and function of steel pipe

　　Seamless steel pipe, known as the "blood vessel" of industry, is an important raw material for national industrial construction and national defense construction. No matter it is used to manufacture aircraft, ship, train, car, boiler, oil, gas, water, or develop mineral resources for geological drilling, it is needed everywhere and cannot be separated from anywhere. Seamless steel A335 high pressure boiler pipe has hollow section, which is widely used as the pipeline for conveying fluid, such as the pipeline for transporting oil, natural gas, gas, water and some solid materials. Compared with solid steel such as round steel, steel tube is a kind of economic section steel with light weight when its bending and torsional strength are the same. It is widely used to manufacture structural parts and mechanical parts, such as oil drill pipe, automobile transmission shaft, bicycle frame and steel scaffold used in construction to manufacture circular parts. It can improve the utilization rate of materials, simplify the manufacturing process, save materials and add Working hours have been widely used to manufacture steel pipes.