In the field of modern industry and construction, large-diameter thick-walled square steel pipes and large-diameter thick-walled rectangular steel pipes are important structural materials and play an indispensable role. These two types of pipes have attracted much attention not only for their unique

Plastic-coated steel pipes for water supply are made of epoxy resin or polyethylene powder on the inside and outside of the base pipe. It not only has the characteristics of high strength, easy connection, and water flow impact resistance of steel pipes, but also overcomes the defects of galvanized

First, the core performance advantages of fire-fighting plastic-coated steel pipe1. Corrosion resistance of fire-fighting plastic-coated steel pipe: adopts inner and outer double-layer coating process, the outer thermosetting powder coating has anti-impact and anti-corrosion properties, and the inne

The corrosion resistance of 304 stainless steel precision tubes is mainly due to the addition of a certain concentration of chromium to the steel. On the one hand, when the chromium content in the iron matrix reaches a certain level, the electrode potential of the iron will increase sharply; on the

Important structures such as boilers and pressure vessels require steel pipe joints to be safely welded through, but due to restrictions on structural size and shape, double-sided welding is sometimes impossible. A special operation method that can only open a single-sided groove is single-sided wel

1. From the surface of the spiral steel pipe, see whether the production process of the spiral steel pipe is exquisite. Generally, it is necessary to study and analyze the spiral steel. The cross-section of the fake and inferior spiral steel pipe is elliptical. The reason is that the manufacturer sa

In the steel industry, 219mm seamless steel pipes, as an important pipe product, have unique advantages and wide applications. Let us explore these advantages and application areas in depth to understand the importance of this steel pipe in the industrial and construction fields.Characteristics of 2

Conventional galvanized steel pipe is a steel pipe that has been hot-dip galvanized. It has good corrosion resistance and is widely used in construction, machinery manufacturing, road traffic, and other fields. Galvanized steel pipes are immersed in molten zinc liquid to form a zinc layer covering t

Straight seam steel pipe is a kind of steel pipe welding process opposite to spiral steel pipe. The welding process of this kind of steel pipe is relatively simple, and the welding cost is relatively low, it can achieve high efficiency during production, so it is relatively common in the market. And

1. Unfixed length (usual length)The length of galvanized seamless steel pipe is generally different, and the length within the standard range is called unfixed length. Unfixed length is also called usual length (through length). For example, the usual length of 159*4.5 galvanized seamless steel pipe