How to choose the material of seamless steel pipe?
For structures that directly bear dynamic loads and structures in areas with strong earthquakes, seamless carbon steel steel pipe with good comprehensive performance should be used; for structures that generally bear static loads, seamless steel pipes with lower prices can be used.
Thin-walled seamless steel pipes are rolled more frequently, the compression ratio of rolling is large, and the compression ratio of thick seamless steel pipes is small. Therefore, precision steel pipes with large thicknesses not only have lower strength, but also have poor plasticity, impact toughness and welding properties. Therefore, seamless steel pipes with better materials should be used for welded structures with large thicknesses.
Carbon steel seamless steel pipe is a long strip of steel with a hollow section, which is used in large quantities as pipelines for conveying fluids, such as pipelines for conveying oil, natural gas, gas, water and certain solid materials. Compared with solid steel such as round steel, steel pipe has the same bending and torsion strength and lighter weight. It is a kind of economical cross-section steel, which is widely used in the manufacture of structural parts and mechanical parts, such as oil drill pipes, automobile transmission shafts, Bicycle racks and steel scaffolding used in building construction, etc.