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  • Seamless carbon steel pipe for ships

    Seamless carbon steel pipe for ships

    Seamless carbon steel pipes for ships are made of high-strength carbon steel, which provides excellent corrosion resistance.  The GB5312-85 standard, promulgated by the China Standardization Organization, outlines the technical requirements and test methods for these pipes used in ship constructi...
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  • Advantages of large diameter stainless steel pipes

    Advantages of large diameter stainless steel pipes

    1. Welded steel pipes are produced continuously online. The thicker the wall thickness, the greater the investment in the unit and welding equipment, and the less economical and practical it is. The thinner the wall thickness, the lower its input-output ratio will be. 2. The process of large-diam...
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  • Seamless pipe vs Welded pipe Cost

    Seamless pipe vs Welded pipe Cost

    Seamless pipe VS welded pipe, which one is more expensive? 1. Production process Seamless steel pipes are produced by heating steel billets to a specific temperature and processing them through perforation, plugging, hot rolling, and other methods. Welded steel pipes, on the other hand, are creat...
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  • Common welded pipe connection methods and specifications

    Common welded pipe connection methods and specifications

    Common welded pipe connection methods and specifications: A) Butt welding connection Butt welding is a method of connecting two pipes by welding their ends together. There are three types of butt welding connections: full welding, short welding, and head welding. 1. Fully soldered connection Full...
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  • Factors affecting the accuracy and resolution of oil casing wall thickness detection

    Factors affecting the accuracy and resolution of oil casing wall thickness detection

    The API standard stipulates that the internal and external surfaces of import and export petroleum casings shall not have folds, separations, cracks, and scars. These defects should be completely removed, and the removal depth should not be less than 12.5% of the nominal wall thickness. Petroleum...
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  • What are the connection methods of steel structures

    What are the connection methods of steel structures

    Weld connection Connection method: Arc welding is mainly used to connect welds in steel structures. That is, at the connection point of the components, the high temperature generated by the arc melts the welding rod or wire metal placed in the welding part to connect the components. Application: ...
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