Product News

  • Spiral steel pipe temperature control and installation process

    Spiral steel pipe temperature control and installation process

    Spiral steel pipe temperature control Spiral steel pipe welding temperature is mainly affected by the high-frequency eddy thermal power, high-frequency eddy current heating power is mainly affected by the frequency, power and thermal eddy current excitation frequency is proportional to the square...
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  • Seamless steel pipe piercing

    Seamless steel pipe piercing

    Piercing is the first step of hot-rolled seamless steel pipe deformation, and its role is to solid hollow tube billet dressed as capillary. Due to wear a capillary surface defects or eccentric (uneven thickness) is difficult to eliminate or reduce the deformation process, therefore, the quality o...
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  • Alloy steel pipe

    Alloy steel pipe

    Alloy tube (Alloy pipe) is a kind of seamless steel pipe, its performance is much higher than the general seamless steel pipe, because this steel pipe inside containing Cr, high temperature resistance, low temperature, corrosion-resistant performance of other non-pipe joints not match, so the mor...
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  • Advantages of Rectangular Pipe Heat Treatment

    Advantages of Rectangular Pipe Heat Treatment

    In order to improve the surface hardness and wear resistance of rectangular pipe, it can be processed some of the surface, ie the surface of pure flame of fire, high, intermediate frequency surface hardening and some chemical treatment and the like. Generally high, intermediate frequency surface ...
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  • Quality control of structural steel pipe

    Quality control of structural steel pipe

    Structural steel in its wall thickness, good materials, processing technology and stability, becoming the first choice for large domestic and foreign oil and gas pipe project. In the large-straight seam welded steel pipe joint structure, weld and heat affected zone is the easiest place to produce...
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  • Boiler tube hydrostatic test

    Boiler tube hydrostatic test

    Boiler tubes is an important material for manufacturing boilers, it will be directly related to the the boiler manufacture of quality so that the quality of the installation and use of quality. Quality of boiler tube should be made of steel plant to guarantee, but in the case of short supply, sup...
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  • Adjustment and parameters of seamless steel tubes perforation

    Adjustment and parameters of seamless steel tubes perforation

    Seamless steel pipe perforation machine pass adjust main parameters are: rolls from the guide plate (guide plate, guide rollers) from ovality, feed angle, angle jarring, head diameter, Head reduction rate before the roll speed and the guide disc Wait. (1) Roll distance is the shortest distance be...
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  • How to Drill Galvanized Steel Pipe

    How to Drill Galvanized Steel Pipe

    Differed from the API steel pipe, the galvanized steel pipe is a kind of steel pipe in nature with a zinc layer. Therefore, drilling a galvanized steel pipe is generally the same as drilling into a API steel pipe. However, there is no protection zinc layer on the drilled hole, so it may rust. Thu...
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  • Carbon steel pipeline

    Carbon steel pipeline

    Pipeline is made of pipe, pipe couplings connection and used for the transport gas, liquid or solid particles of the fluid with the device. Typically, the fluid by the blowers, compressors, pumps and boilers and other pressurized, from the high pressure of pipeline flow the low pressure point, ca...
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  • Advantages of spiral pipes

    Advantages of spiral pipes

    Spiral pipe is widely used in natural gas, petroleum, chemical industry, power industry, heating industry, water supply and drainage industry, steam heating, hydropower pressure steel pipe, thermal energy, water and other long-distance transmission pipeline and piling, dredging, bridges, steelstr...
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  • Seamless Steel Pipes for Project

    Seamless Steel Pipes for Project

    Hunan Great Steel Pipe offer the seamless steel pipes used for project service include coneying water, pertroleum, gas and other common fluides. Seamless steel pipe are ubiquitous and can be found underground and within residential walls, laboratories, and commercial and industrial structures. Se...
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  • Lined pipe stress analysis

    Lined pipe stress analysis

    Lined pipe from the inner lining is the wear layer, the insulating layer, steel wall. Currently lined pipeline network to use more double-lined shells, no shells steel and fiber-reinforced double lining, no single hexagonal mesh of steel fiber reinforced lining and other forms. Because after usin...
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