Seamless steel pipes are pipes with hollow sections and are used in large quantities as pipelines for transporting fluids, such as pipelines for transporting oil, natural gas, gas, water and certain solid materials. Compared with solid steel such as round steel, steel pipe is lighter in weight when the bending and torsional strength is the same. It is an economical section steel and is widely used in pipeline engineering.
The production process of general seamless steel pipes can be divided into two types: cold rolling and hot rolling. In appearance, cold-rolled seamless steel pipes are shorter than hot-rolled seamless steel pipes, and the wall thickness of cold-rolled seamless steel pipes is generally higher than that of hot-rolled seamless steel pipes. To be small. But the surface looks brighter than the thick-walled seamless steel pipe. There isn't much roughness on the surface, and the caliber doesn't have too many burrs.
The maximum nominal diameter of cold-rolled tubes is 200 mm, and the maximum nominal diameter of hot-rolled tubes is 600 mm.
