In recent years, with the development of steel structure manufacturing industry, more and more steel structures, household appliances, furniture, water heating, HVAC, gas, transportation and agricultural equipment manufacturing industry, coal, oil and gas mining underground resources, guns are used in stadium building roof truss, beam, column and steel structure building. Space and space rockets, artillery, missiles, etc. Therefore, the development of national economy in pipeline is closely related to people's living standard.


The technical standard of seamless steel tube is a comprehensive performance characteristic, correct and reasonable economic use of seamless service. In technical standard diameter, wall thickness and tolerance, pipe length, bending, end ellipticity, conveying weight, general marks, such as list range, must meet technical requirements and mechanical properties, process performance, inspection items and methods, inspection rules. For some special uses of seamless steel tubes, special attention should be paid to some specified standard requirements. Therefore, in the process of using seamless steel tube, we should not only understand the requirements of users, but also meet the requirements of low carbon steel tube technical standards.