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 used in the process pipelines of new and expanded petrochemical plants. The biggest use problem of this kind of pipe […]

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 scale, on the one hand, affects the quality of subsequent lubrication; on the other […]

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 actual production, steel often contains different alloying elements according to different uses, such as: […]

The angle steel can be composed of various stress-bearing components according to the different needs of the structure, and can also be used as a connection between the components. Widely used in various building structures and engineering structures, such as beams, bridges, transmission towers, lifting and transporting machinery, ships, industrial furnaces, reaction towers, container racks, […]