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  • Process flow of steel elbow

    Process flow of steel elbow

    Seamless steel elbow: steel elbow is a kind of pipe fitting used in the turning of pipelines. Among all the pipe fittings used in the piping system, the proportion is about 80%. Usually, different forming processes are selected for steel elbows of different materials or wall thicknesses. The comm...
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  • Straight seam steel pipe de-rusting technology and forming technology introduction

    Straight seam steel pipe de-rusting technology and forming technology introduction

    Straight seam steel pipe de-rusting technology: In the anticorrosion construction process of oil and gas pipelines, the surface treatment of straight seam steel pipe is the key factor to determine the anti-corrosion service life of the pipeline, and it is the premise of whether the anticorrosion ...
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  • What should be paid attention to when installing the butt welding steel elbow

    What should be paid attention to when installing the butt welding steel elbow

    Before the official installation of the butt welding steel elbow, each steel elbow pipe joint must be measured and numbered, and the pipe joint group with the smallest difference in pipe diameter should be selected for the butt joint. When splicing pipes on the ground, use 14×14cm sleepers under ...
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  • Why 304, and 316 stainless steel pipe fittings are magnetic

    Why 304, and 316 stainless steel pipe fittings are magnetic

    In real life, most people think that stainless steel pipe fitting is non-magnetic, and use magnets to identify stainless steel, which is very unscientific. People often think that magnets absorb stainless steel, and verify its quality and authenticity. If it does not attract and has no magnetism,...
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  • What are the common classifications of stainless steel pipes

    What are the common classifications of stainless steel pipes

    1. Production method: Stainless steel welded pipes are divided into two categories: seamless pipes and welded pipes according to the production method. Seamless steel pipes can be divided into hot-rolled pipes, cold-rolled pipes, cold-drawn pipes, extruded pipes, etc. It is the secondary processi...
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  • Classification and anticorrosion of API casing

    Classification and anticorrosion of API casing

    Oil casing can be roughly divided into 1. The surface casing is according to different usage methods. Second, the middle casing. 3. Production casing. 4. Drilling casing. The surface casing is mainly to suspend and support the subsequent layers of the casing through the casing head installed on t...
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