Cold Drawn Seameless Steel Pipes
Cold Drawn Seamless Steel PipeThe cold drawn seamless steel pipe can be divided into common seamless tube,Website:, high, medium and low pressure boiler tube, alloy-steel tube, anti-rust pipe and petroleum cracking pipe. Another way to categorize it is to divide it into carbon thin wall steel tube, alloy thin wall pipe, stainless thin-wall thickness tube and more. Our products have the following models, SCH 20, SCH 30, SCH40, SCH80, and SCH160. Cold drawn seamless steel tube offers better surface quality, external appearance, and size precision than the hot rolled product, so it is much more popular among our customers. Due to aforementioned advantages, it is commonly used to build the structure of precision instruments, hydraulic equipment, and steel sleeves. Both two-high mills and three-high mills are regularly used to produce cold drawn seamless steel pipes, and products produced by three-high mills have higher precision and accordingly comparatively higher cost. All products produced by our company have inner and outer diameter precision up to standard, and also offer high inner and outer surface smoothness, roundness, and straightness. These can effectively improve processing efficiency and improve material utilization rate as well. Production Processes Round tube blank → heating → piercing → annealing → acid washing→ oiling (copper plating) → cold drawing→ semi-finished tube → heat treatment →straightening → water pressure test or flaw detection → marking → warehousingTechnical Specifications Size Range: 1/4 inch~4 inch (13.7mm ~114.3mm)Wall Thickness: 2.24~13.49mmStandard: API5L, ASTM A106Steel Grade: GR.A, GR.B, X42, X46, X52End Finish: Plain end, bevel end, thread, coupling, plastic capPipe Coating: Black vanish, bare, clear oil
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