Implementation standards of Q345D seamless steel pipe: GB/T8162 seamless steel pipe for structure, GB/T8163 seamless steel pipe for conveying fluid, GB/T6479 seamless steel pipe for high-pressure and high-temperature fertilizer equipment. Except for GB/T8162 seamless steel pipe for structure, GB/T81

For the problem of poor corrosion resistance of steel pipes, using epoxy resin coated steel pipes is an effective solution. The following are specific solutions and implementation plans, covering technical principles, process optimization, and supporting measures to help comprehensively improve the

X46 double-sided submerged arc welded spiral steel pipe is an important steel pipe widely used in many industries such as petroleum, natural gas, chemical industry, and electric power. It is characterized by the use of a double-sided submerged arc welding process, which has high strength and corrosi

The production process of Q355GNH straight seam steel pipe mainly includes steel plate forming, welding, heat treatment, and finishing. First, the Q355GNH steel plate is rolled into a tube by a forming machine, and then the seam is welded firmly by high-frequency welding or submerged arc welding. Du