Production process of ASTM CortenB weathering steel plate

ASTM CortenB weathering steel plate is made by adding phosphorus, nickel, copper and other trace elements to ordinary steel plate in the smelting process. A dense and highly protective film is formed on the surface of ASTM CortenB weathering steel plate, which prevents the further diffusion of corrosion, so as to protect the material below to slow down corrosion. ASTM CortenB weathering steel plate is exposed in appearance and are resistant to corrosion without the use of other coatings. It is environmentally friendly because it has no pollution to the surrounding environment.

ASTM CortenB weathering steel plate production process: weathering steel is generally smelted into the furnace, including converter, electric furnace microalloying treatment, argon gas blowing refining, low overheating continuous casting, rare earth wire feeding, controlled rolling and controlled cooling. During smelting, scrap steel is added to the furnace along with the charge and smelted according to conventional methods. After the steel is discharged, deoxidizer and alloy are added.

After blowing argon on the molten steel, the ASTM CortenB weathering steel plate is poured immediately, and the molten steel adjusted by argon gas is poured through a continuous casting machine. Plate. Due to the addition of rare earth elements in the steel, the ASTM CortenB weathering steel plate is purified and the inclusion content is greatly reduced.