1. 316 stainless steel is a type of molybdenum-containing stainless steel. Due to the molybdenum in the steel, the overall performance of this steel is better than that of 310 and 304 stainless steel. Under high-temperature conditions, when the concentration of sulfuric acid is lower than 15% and hi

During the forming process of the spiral steel pipe, the steel plate is uniformly deformed, the residual stress is small, and there is no scratch on the surface. The processed spiral steel pipe has greater flexibility in the range of diameter and wall thickness, especially when producing high-grade

In modern household water supply pipes, the corrosion resistance of water pipes is very important, because it means we can drink healthy and pollution-free drinking water. When PPR plastic pipes were promoted as tap water pipes, a test report from the Shanghai Disease Research Institute showed that

1. The premise must be polishedThe galvanized layer at the weld must be polished off, otherwise, bubbles, trachoma, false welding, etc. will occur. It will also make the weld brittle and reduce rigidity.2. The welding characteristics of galvanized steelGalvanized steel is generally coated with a lay

Steel bending pipe processing and forming process1. Die forging. For socket welding and threaded tees, crosses, elbows, and other small pipe fittings, the shapes are more complicated and should be manufactured by the die forging process, and the die forging blanks should be rolled profiles, such as

There are significant differences between straight seam steel pipes and steel pipes. I believe that many people must think that the two are similar in terms of usage and performance. Straight seam steel pipes are higher than steel pipes. The better types sold in the market are electric welded steel

Spiral welded pipes and straight seam welded pipes have different technical characteristics and production processes. They have many differences and differences in production, have different functions and uses, and their values in use are also different.The first is the difference in the welding pro

Spiral steel pipe and steel coil pipe are both welded steel pipes, and the production process of the two is very different. Spiral steel pipe is a spiral seam steel pipe made of strip steel coil as raw material, extruded at regular temperature, and welded by automatic double-wire double-sided submer

Push-made steel elbow: the process of pushing steel elbow with machinery + mold inner tube + intermediate frequency heating method, but later it is probably difficult to control the inner and outer wall thickness, and it is rarely used in practice. Socket weld elbows: most are forged. Sockets are us

The processing of the outer anti-corrosion layer of the steel pipe must strictly follow the design requirements and relevant national standards. Rust removal must reach Sa2.5 level, and the primer must be applied within 2 hours after the rust removal is completed. After the primer is dry, the anti-c