The development of steel pipe production technology began in the rise of the bicycle manufacturing industry, the development of oil in the early 19th century, the manufacturing of ships, boilers, and aircraft during the two World War of China, the manufacturing of the fire electric boiler after World War II, the development of the chemical industry, and the development of the chemical industry and the development of the chemical industry and The drilling and transportation of oil and gas has strongly promoted the development of the steel pipe industry in terms of varieties, output and quality.
Steel pipes are not only used to transport fluids and powder solids, exchange thermal energy, manufacturing mechanical parts and containers. It is also an economic steel. The use of steel pipes to manufacture building structure grids, pillars and mechanical brackets can reduce weight, save 20-40%of metal, and can achieve factory mechanization construction.
Seamless steel pipes and stainless steel pipes are the two categories of wide application fields. Seamless steel pipes are one of the important raw materials in economic construction, and are known as industrial "blood vessels".
Seamless pipes are widely used as mechanical industrial pipes (mainly hydraulic and pneumatic cylinder tubes, hydraulic oil pipes, car transmission shaft pipes and semi -axis sleeves, bearing steel pipes, belt transmission roller tubes, printing and dyeing rollers, etc.) Petroleum geological industrial pipe (oil pump pipe, drilling pipe, oil pipe, sleeve, drill rod, etc.), chemical pipes (petroleum cracking pipes, high pressure tubes, chemical equipment and pipeline pipes), power station boiler and heat exchange device tube wait.
