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Home > Products > Seamless pipeSeamless pipe
Seamless steel pipe is a hollow cross section, no seams around the circle, square, rectangular steel. Seamless steel pipe the ingot or seamless steel pipe is a hollow cross section, no seams around the circular, square, rectangular steel. Seamless steel tubes which have been perforated or solid steel ingot tube made of the capillary tube, and then hot-rolled, cold-rolled or cold call is made. Seamless steel hollow section with a large number of channels for transporting fluid pipes, steel round solid steel compared to the same torsional strength in bending, lighter, is an economic cross-section steel, widely used in the manufacture of structural parts and mechanical parts, such as drill pipe, automotive drive shafts, bicycle frames and construction using steel scaffolding. The solid tube

perforation made of capillary, and then hot-rolled, cold-rolled or cold call is made. Seamless steel hollow section with a large number of channels for transporting fluid pipes, steel round solid steel compared to the same torsional strength in bending, lighter, is an economic cross-section steel, widely used in the manufacture of structural parts and mechanical parts, such as drill pipe, automotive drive shafts, bicycle frames and construction using steel scaffolding. Seamless steel tube profile


seamless steel pipe specifications usually outside diameter * thickness (unit: mm). Such as: diameter 30mm bore 20mm wall thickness of 5mm general oral reading to do: imprevement of diameter 30 * 5. (Reversal) seamless steel pipe two categories can be divided into hot-rolled seamless steel tubes and cold rolled seamless steel pipe production methods. Hot-rolled seamless steel pipe generally sub, low and medium pressure boiler pipe, high pressure boiler steel, alloy steel pipe, stainless steel pipe, oil cracking pipe, geological steel and other steel and other. Cold-rolled (allocated) Subject to sub-seamless steel pipe generally low and medium pressure boiler pipe, high pressure boiler steel pipe, alloy steel pipe, stainless steel pipe, oil cracking pipe, the other steel, precision steel tubes, carbon thin-walled steel pipe, alloy thin wall steel pipe, stainless steel thin-walled pipe, shaped steel. Hot-rolled seamless pipe diameter is generally greater than 32mm, wall thickness 2.5-75mm, rolled seamless steel pipe diameter can go to 6mm wall thickness to 0.25 mm, the outer diameter of the thin-walled tube to 5mm thickness less than 0.25mm, cold rolled, hot-rolled high dimensional accuracy. In the pipeline project, diameter more than 57mm, often used in hot-rolled tube diameter less than 57mm common cold drawn (rolled) pipe. General seamless steel pipe 10 #, 20 #, 30 #, 35 #, 45 # high quality carbon steel or 16Mn, 5MnV low-alloy structural steel or 40Cr 30CrMnSi, 45Mn2, 40MnB and such as alloy structural steel or the cold-rolled steel. 10 #, 20 # and other low-carbon steel seamless pipe is mainly used for fluid pipes. 45 #, 40Cr, made of carbon steel seamless pipe commonly used to manufacture of mechanical parts, such as automobiles, tractors and the force components. General seamless steel pipe to ensure the strength and flattening test. Hot-rolled steel hot-rolled state or heat treatment delivery; cold to heat treatment delivery. Hot, by definition, high temperature rolling, deformation resistance, can achieve a large amount of deformation. The steel rolling, for example, the the general slab thickness of about 230mm, and after roughing and finishing, the final thickness of 1 ~ 20mm. The same time, the plate thickness ratio is small, the dimensional accuracy requirements relatively low, not prone to problems in shape, to control the crown. Requirements for the organization, usually by controlled rolling and cooling to achieve that control the opening and finishing rolling temperature, finish rolling temperature and coiling temperature to control the microstructure and mechanical properties of the strip.
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Address:Long Bridge of Park Lufu Ning, side, Longgang District, Shenzhen Tel:86-755-28830598 Fax:86-755-84830088
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