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  • Straight seam steel pipe derusting method and inspection steps

    Straight seam steel pipe derusting method and inspection steps

    Straight seam steel pipe is a steel pipe whose weld seam is parallel to the longitudinal direction of the steel pipe. It is usually divided into metric electric welded steel pipe, electric welded thin-walled pipe, transformer cooling oil pipe and so on. The production process of straight seam wel...
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  • Is there any difference between HFW steel pipe and ERW steel pipe

    Is there any difference between HFW steel pipe and ERW steel pipe

    The difference between ERW (straight seam electric resistance welded) steel pipe and HFW (high frequency welded) steel pipe is mainly the principle. As the name implies, resistance welding is a method in which pressure is applied through electrodes after the weldment is combined, and the resistan...
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  • What is the suitable temperature for welding straight seam steel pipe

    What is the suitable temperature for welding straight seam steel pipe

    Welding, also known as welding, is a manufacturing process and technology that can join metal or other thermoplastic composite materials such as plastics by applying heat, high temperature, or pressure. There are three welding methods: 1. Welding. The workpiece is heated to form a molten pool. Af...
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  • Defects that are prone to occur in the welding zone of spiral steel pipes

    Defects that are prone to occur in the welding zone of spiral steel pipes

    The defects that are easy to occur in the welding area of the spiral steel pipe include air holes, thermal cracks, and undercuts. Spiral steel pipe weld porosity not only affects the tightness of the pipe weld, causing pipeline leakage but also becomes a corrosion induction point, seriously reduc...
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  • Packaging precautions for spiral steel pipes

    Packaging precautions for spiral steel pipes

    How to pack the spiral steel pipe when transporting it has always been a problem that needs attention. Next, I will talk to you about the precautions for packing the spiral steel pipe. 1. If the buyer has special requirements for the packaging material and packaging method of the spiral steel pip...
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  • A Simple Analysis of the Storage Site and Deoxidizer of Straight Seam Steel Pipe

    A Simple Analysis of the Storage Site and Deoxidizer of Straight Seam Steel Pipe

    Straight seam steel pipe can be divided into many different specifications and names, among which the names are, straight seam welded pipe, double-sided submerged arc welded pipe, thick wall straight seam steel pipe, straight seam steel pipe, large diameter straight seam steel pipe, API5L straigh...
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