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盛仕达钢铁股份有限公司

Product News

  • Spiral steel pipes can be divided into several categories according to their uses

    Spiral steel pipes can be divided into several categories according to their uses

    There are roughly four categories of spiral steel pipes according to their uses: spiral steel pipes for drainage, spiral steel pipes for dredging, spiral steel pipes for piling, and spiral steel pipes for oil and gas. Spiral steel pipe for drainage Materials of spiral steel pipes for drainage: Q2...
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  • What are the specifications of seamless steel pipes

    What are the specifications of seamless steel pipes

    Seamless steel pipe DN219*6 represents a seamless steel pipe with a nominal diameter of 219mm and a wall thickness of 6mm. DN stands for nominal diameter, nominal diameter, also known as average outer diameter. Refers to the standardized diameter series of containers, pipes, and accessories. The ...
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  • Steel bending pipe calculation and blanking

    Steel bending pipe calculation and blanking

    Before performing steel bending pipework, you must first calculate the unfolded length of the bent section of the pipe and mark the starting point of the bending so that the correct semi-finished product can be obtained after bending. 1. Calculation of 90°bending pipe 90°bending pipe is the most ...
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  • Daily maintenance is required for thick-walled steel pipes in use

    Daily maintenance is required for thick-walled steel pipes in use

    Thick-walled steel pipes are widely used in steel products. It directly affects the economic benefits and the lives of personnel. Countries all over the world have attached great importance to the inspection of thick-walled steel pipes and adopted various non-destructive testing (NDT) methods to ...
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  • Method of welding steel pipe forming

    Method of welding steel pipe forming

    1.Single radius forming method. The single-radius roll forming method has three types: circumferential bending forming method, edge bending forming method, and center bending forming method. The single radius forming method is: the hole pattern is composed of a single radius, the horizontal rolle...
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  • Slag inclusion cutting method for straight seam steel pipe

    Slag inclusion cutting method for straight seam steel pipe

    1. Regardless of whether the straight seam steel pipe is rotated or fixed The cutting nozzle should be kept perpendicular to the surface of the straight seam steel pipe. After the cutting is completed, the cutting nozzle is gradually tilted forward at an angle of 70°-80° with the tangent line of ...
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  • Matters needing attention in use of thick-walled steel pipe

    Matters needing attention in use of thick-walled steel pipe

    The wall thickness can be called a thick-walled steel pipe. There are some doubts about this. It depends on the ratio of the outer diameter of the steel pipe to the wall thickness of the steel pipe. For example, a steel pipe with a diameter of 50 mm, 10 mm can be regarded as a thick-walled steel ...
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  • Production process of spiral steel pipe

    Production process of spiral steel pipe

    (1) Raw materials are strip steel coils, welding wires, and fluxes. Strict physical and chemical tests are required before investment. (2) Butt joint of strip steel head and tail, adopt single wire or double wire submerged arc welding, after coiling into steel pipe, adopt automatic submerged arc ...
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  • Hot rolling and cold rolling technology of seamless steel tube

    Hot rolling and cold rolling technology of seamless steel tube

    Seamless steel pipes are made of steel ingots or solid tube billets through the perforation into capillary tubes and then made by hot rolling, cold rolling, or cold drawing. The specifications of seamless steel pipes are expressed in millimeters of outer diameter * wall thickness. Seamless steel ...
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  • Characteristics of Steel Structure Buildings

    Characteristics of Steel Structure Buildings

    1. The material has high strength and is lightweight The steel used in steel structures has high strength and high elastic modulus. Compared with concrete and wood, the ratio of its density to yield strength is relatively low. Therefore, under the same stress conditions, the steel structure has a...
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  • The difference between hot-dip galvanized steel pipe and cold-dip galvanized steel pipe

    The difference between hot-dip galvanized steel pipe and cold-dip galvanized steel pipe

    Hot-dip galvanizing pipe reacts molten metal with an iron matrix to produce an alloy layer, thereby combining the matrix and the coating. Hot-dip galvanizing is to pickle the steel pipe first. To remove the iron oxide on the surface of the steel pipe, after pickling, it is cleaned in an aqueous s...
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  • How to solve the deformation problem of spiral submerged arc welded steel pipes

    How to solve the deformation problem of spiral submerged arc welded steel pipes

    The spiral seam submerged arc welded steel pipe is rotated and drilled and begins to enter the soft formation. Under the action of the three-cone wheel, the drill bit first produces elastic shear deformation of the formation and then is removed under the pressure of the three-cone wheel. In the s...
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