Key Specifications/ Special Features:
Cold rolled seamless pipe is used for mechanical structure, hydraulic equipment size accuracy and surface smoothness of good cold drawn or cold rolled precision seamless steel pipe.Cold rolling (dial) seamless tube in addition to the general steel pipe, low and medium pressure boiler steel pipe, high pressure boiler steel pipe, alloy steel pipe, stainless steel pipe, oil cracking pipe, other steel pipes, but also including carbon thin wall steel pipe, alloy thin wall steel pipe, stainless steel pipe, non-rust thin wall steel pipe, shaped steel pipe.The outer diameter of hot rolled seamless pipe is generally more than 32mm, wall thickness 2.5-75mm, cold rolled seamless steel pipe diameter can be up to 6mm, wall thickness can be up to 0.25mm, thin wall diameter can be up to 5mm, wall thickness is less than 0.25mm, cold rolling than hot rolling size accuracy.
Cold drawing process
Cold rolling refers to the process of cold drawing, cold bending, cold drawing and other cold processing of steel plate or strip into various types of steel at room temperature.
Cold rolled seamless pipe Application
1. Seamless tube for structure (GB/ t8162-1999) is a seamless tube for general structure and mechanical structure.
2. Seamless tube for fluid transportation (GB/ t8163-1999) is a general seamless tube used for transporting water, oil, gas and other fluids.
3. Seamless tube for low and medium pressure boiler (gb3087-1999) is a kind of high quality carbon structural steel hot-rolled and cold-drawn (rolled) seamless tube used for manufacturing superheated steam tube for low and medium pressure boiler, boiling water tube and superheated steam tube for locomotive boiler, large smoke tube, small smoke tube and arch brick pipe.
4. Seamless tube for high pressure boiler (gb5310-1995) is used for manufacturing high pressure and above water tube boiler heating surface of high-quality carbon steel, alloy steel and stainless heat resistant steel seamless tube.
5. High pressure seamless tube for fertilizer equipment (gb6479-2000) is suitable for high quality carbon structural steel and alloy steel seamless tube for chemical equipment and pipelines with working temperature of -40~400ºC and working pressure of 10~30Ma.
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