Generally, there are two ways of galvanizing seamless steel pipe, one is hot-dip galvanizing, the other is electro galvanizing. Hot dip galvanizing mainly includes wet process, dry process, lead-zinc process, oxidation-reduction process, etc. As the name

General boiler steel pipe is mainly used to manufacture water-cooled wall tubes, boiling water tubes, superheated steam tubes, superheated steam tubes for locomotive boilers, large and small smoke tubes and arch brick tubes, etc.

Causes of ASTM A139 Grade E steel pipe pitting:ASTM A139 Grade E steel pipe in the heat treatment caused by excessive thickness of the oxide sheet, in the straightening of the oxide sheet pressed into peeling after the production of pitting. There is dirt

DIN 17172 STE480.7 seamless steel pipe has a hollow section, a large number of fluid pipeline, such as the transportation of oil, natural gas, gas, water and some solid materials pipeline. We will introduce in detail the DIN 17172 STE480.7 seamless steel