Supply China Cold rolled seamless steel pipe
Supply China Cold rolled seamless steel pipe
Seamless steel tubes are pipes that have a hollow section and are used in large quantities to transport fluids, such as pipes that transport oil, natural gas, gas, water, and certain solid materials. Compared with solid steel such as round steel, steel pipe is lighter in weight when it has the same bending and torsional strength. It is an economical section steel and is widely used in pipeline engineering.
The production process of general seamless steel pipe can be divided into cold rolling and hot rolling. The appearance of cold rolled seamless steel pipe is shorter than that of hot rolled seamless steel pipe. The wall thickness of cold rolled seamless steel pipe is generally higher than that of hot rolled seamless steel pipe. Be small. But the surface looks brighter than thick-walled seamless steel pipes. The surface is not too rough, and there are not too many burrs in the caliber.
The cold-rolled pipe has a maximum nominal diameter of 200 mm and the hot-rolled pipe has a maximum nominal diameter of 600 mm.
Cold rolled steel pipe features
High-precision cold drawn precision steel pipe is a new type of steel pipe, and its main feature is high precision. There are usually two production processes for two-roll mills and three-roll mills. The precision of the three-roll mill for producing cold-rolled seamless steel tubes is higher, and can be controlled within a few filaments, but the price is relatively high.
The promotion and application of high-precision cold drawn precision steel pipe saves steel and improves processing efficiency and saves energy. The so-called high-precision cold drawn seamless steel pipe refers to the inner and outer diameter dimensional accuracy (tolerance range) is strict, internal and external surface finish, roundness and straightness. Good, can greatly save machining time, improve material utilization, and help improve product quality.
cold rolled tube
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