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Diameter expansion technology and detection methods for straight seam steel pipes
Generally speaking, the diameter of steel pipes can be divided into outer diameter, inner diameter, and nominal diameter. The outer diameter of a steel pipe made of straight seam steel pipe is represented by the letter D, followed by the size of the outer diameter and wall thickness. For example,...Read more -
Differences and uses of seamless steel pipes and spiral welded pipes
Seamless steel pipes have a wide range of uses. 1. General-purpose seamless steel pipes are rolled from ordinary carbon structural steel, low-alloy structural steel, or alloy structural steel, with the largest output, and are mainly used as pipes or structural parts for conveying fluids. 2. They ...Read more -
How to prevent decarburization of spiral welded steel pipes
The service life of spiral welded steel pipes is related to the surface decarburization of spiral welded steel pipes. If the surface is decarburized, the strength and wear resistance of the spiral welded steel pipe will be reduced, which will directly affect the service life of the spiral welded ...Read more -
Different types and appearance requirements of straight seam steel pipes
The high-frequency welding process of straight seam steel pipes is completed in high-frequency welded pipe units. High-frequency welded pipe units are usually composed of rolling forming, high-frequency welding, extrusion, cooling, sizing, flying saw cutting, and other components. The front end o...Read more -
Anti-rust maintenance and inspection methods for straight seam welded pipes
The production process of straight seam welded pipes is simple, with high production efficiency, low cost and rapid development. The strength of spiral welded pipes is generally higher than that of straight seam welded pipes. Narrower billets can be used to produce welded pipes with larger diamet...Read more -
The cooling form and construction introduction of large-diameter steel pipe
First, the cooling form of large-diameter steel pipe: Large-diameter steel pipe is a steel pipe with an outer diameter of more than 1000MM. Large-diameter seamless steel pipe is made of steel ingot or solid tube billet by perforation into the rough tube, and then hot-rolled, cold-rolled, or cold-...Read more