How to scientifically arrange the production of hot-dip galvanized spiral steel pipe

How to scientifically arrange the production of spiral steel pipes The production of spiral steel pipe is due to its slow adjustment process and fast production. Under normal circumstances, it is not often adjusted, because the adjustment…

Flatness galvanized steel pipe

Galvanized steel pipes are divided into cold galvanized steel pipes and hot-dip galvanized steel pipes. Cold galvanized steel pipes are strictly prohibited from being used, and the latter one is advocated for temporary use in my country. In…

Knowledge of the application and precautions of polyurethane thermal insulation steel pipe

Polyurethane direct buried thermal insulation pipe is suitable for thermal insulation and cold insulation projects of various media in the range of -50℃~150℃. It is widely used in thermal insulation and cold insulation projects in urban…

Common anti-corrosion coatings for national standard spiral steel pipes

The national standard spiral steel pipe refers to the steel pipe that is used and transported as a medium, and the steel pipe is corroded by chemical or electrochemical reactions due to the influence of the use environment and the conveying…

Welding process of 304 lined stainless steel composite pipe

Welding process of 304 lined stainless steel composite pipe (304+Q235B) is a new type of composite pipe, which has the characteristics of corrosion resistance, high temperature resistance, high elongation, high strength, etc. It is widely…

What are the advantages of heat treatment of Q345D seamless steel pipe?

In order to better improve the tensile strength and wear resistance of the surface of Q345D seamless steel pipe, we need to carry out some surface treatment of metal materials during the production process. Are there any characteristics of Q345D…

Why do ordinary seamless steel pipes need to be pickled?

The iron oxide scale on the inner and outer surfaces of the hot-rolled tube stock or the in-process tube after the intermediate heat treatment should be removed before the cold working of the ordinary seamless tube. The existence of iron oxide…

A brief introduction to the production process of seamless steel pipes

It means that there is no weld on the steel pipe. This kind of steel pipe is integrally formed, and is directly rolled from a billet in the production. Because of the seamless relationship, it has a very good high pressure resistance advantage,…

The difference between carbon steel, galvanized steel and stainless steel

Steel is a general term for iron alloys with a carbon content between 0.02% and 2.04% by mass. The chemical composition of steel can vary greatly, and steel containing only carbon is called carbon steel (carbon steel) or ordinary steel; In…

Low-alloy angle steel manufacturers analyze the characteristics, application range and specifications of low-alloy angle steel

Low alloy angle steel can be composed of various stress components according to different structural requirements, and can also be used as connecting parts between components. Widely used in various building structures and engineering structures,…