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  • Application of spiral steel pipe

    Application of spiral steel pipe

    Spiral steel pipes are mainly used in water supply projects, the petrochemical industry, the chemical industry, the electric power industry, agricultural irrigation, and urban construction. They are one of the twenty key products developed in my country. For liquid transportation: water supply an...
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  • Large seamless steel pipe details

    Large seamless steel pipe details

    Large seamless steel pipe is an important metal product, mainly used in various industrial and construction fields. Its advantages include seamlessness, high strength, and corrosion resistance, so it has received widespread attention and application. This article will introduce large seamless ste...
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  • Welding treatment of thick-walled spiral steel pipe

    Welding treatment of thick-walled spiral steel pipe

    Thick-walled spiral steel pipe is a method of arc welding under the flux layer. It is formed by using the heat generated by the arc burning between the flux and the welding wire under the flux layer, the base metal, and the melted welding wire flux. During use, the main stress direction of thick-...
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  • Anti-corrosion painting and development analysis of straight seam steel pipe

    Anti-corrosion painting and development analysis of straight seam steel pipe

    The performance and functions of the original color straight seam steel pipe in the specific use process fully demonstrate the operational contribution and usability. After painting and spraying white letters, the straight seam steel pipe also looks very energetic and beautiful. Now Pipe fittings...
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  • Seamless steel pipe quality inspection methods

    Seamless steel pipe quality inspection methods

    1. Chemical composition analysis: chemical analysis method, instrumental analysis method (infrared C-S instrument, direct reading spectrometer, zcP, etc.). ① Infrared C-S meter: Analyze ferroalloys, steelmaking raw materials, and C and S elements in steel. ②Direct reading spectrometer: C, Si, Mn,...
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  • The difference between galvanized steel pipe and hot-dip galvanized steel pipe

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

    A galvanized steel pipe is generally called a cold-plated pipe. It adopts an electroplating process and only the outer wall of the steel pipe is galvanized. The inner wall of the steel pipe is not galvanized. Hot-dip galvanized steel pipes use a hot-dip galvanizing process, and the inner and oute...
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