What are the process flows for API 5L welding steel pipes?
Mar .13.2025
API 5L welding steel pipes often uses the Shielded Metal Arc Welding (SMAW) technique, commonly called stick welding. This method uses a stick-shaped electrode to generate an electric arc that melts the metal during welding. The welder uses a flux-coated electrode to protect the weld metal and prevent atmospheric contamination.
A53 Hot-dip galvanized seamless steel pipe production process
Mar .11.2025
ASTM A53 Hot-dip seamless pipe is to make molten metal react with iron matrix to produce alloy layer, so that the matrix and coating are combined. Hot-dip galvanizing is to pickle the steel pipe first. In order to remove the iron oxide on the surface of the steel pipe, after pickling, it is cleaned in an ammonium chloride or zinc chloride aqueous solution or a mixed aqueous solution of ammonium chloride and zinc chloride, and then sent to the hot-dip galvanizing tank. Hot-dip galvanizing has the advantages of uniform coating, strong adhesion, and long service life.
What are the ways to reuse waste A312 stainless steel seamless pipe?
Mar .06.2025
ASTM A312 Stainless steel pipes are pipes used to transport different types of fluids and are widely used in construction, machinery, chemical industry and other fields. Stainless steel materials have the advantages of high strength, high corrosion resistance, easy processing and not easy to deform, so they have become the preferred material in many industries. Stainless steel pipes can be divided into seamless stainless steel pipes and welded stainless steel pipes according to the production process.