nansteel Articles

Why do seamless pipes need to be degreased?

Degreasing is also known as degreasing. Refers to a method of removing grease from wastewater, sludge or solid waste. It also refers to the process of removing grease from the...

External Surface Defects of Cold Drawn Low and Medium Pressure...

Low and medium pressure boiler tubes are made of steel ingots or solid tube billets through perforation into capillary tubes, which are then hot-rolled, cold-rolled or cold-drawn.It is suitable for...

Brief introduction of steel pipe perforation process

Traditional barrel roll (or Mann) piercers are widely used in the production of hot-rolled seamless steel pipes. But since the double-supported conical punching machine appeared in 1980, the conical punching...

Welding process of ssaw steel pipe

SSAW steel pipe (spiral submerged arc welded steel pipe) is formed by spiral bending of hot-rolled strip steel, and spiral seam steel pipe (also called spiral welded pipe, spiral pipe...

Cold rolling and hot rolling of seamless steel pipes

hey have their own shortcomings and advantages, and there are also great differences between them.It can destroy the casting structure of the ingot, refine the grain of the steel, and...

What are the uses of seamless steel pipes?

Seamless steel pipes mainly reflects three major areas: one is the construction field, which can be used for underground pipeline transportation, including groundwater extraction when building buildings; the second is...

What are the factors affecting of stainless steel pipes quality?

Stainless steel pipe is a kind of hollow long round steel, according to its production method is divided into two categories: seamless pipe and welded pipe. Factors affecting the quality...