Prime hot rolled 09cuptire-a steel material in coil

09CUPTIRE-A steel material, Large diameter spiral steel pipe refers to the relatively large diameter spiral steel pipe, which is generally required to be more than 1000mm. The manufacturing process of large-diameter spiral steel pipe: first, the steel strip is bent into shape, and then welded together to make a large-diameter spiral steel pipe of specified size. After being processed into a pipe, hydrostatic test, bending, flattening and other tests shall be carried out, and the internal steel support of large-diameter spiral steel pipe can be made according to customer requirements.

09CUPTIRE-A steel material, S355J2WP plate is a high phosphorus corrosion resistant structural steel, and P is the chemical element phosphorus. S355J2WP steel enhances the atmospheric corrosion resistance applied at ambient temperature. In order to achieve the corrosion resistance, some specific alloy elements, such as P, Cu, Cr, Ni, Mo, etc., are added to form a protective oxide layer on the metal surface under various climatic conditions.

Rolled sheet is a very common material in industrial construction. Rolled sheet at room temperature is cold-rolled sheet, and cold-rolled sheet is the rolling of hot-rolled coils below the recrystallization temperature. The hot-rolled sheet is rolled above the recrystallization temperature. So what is the difference between 09CUPTIRE-A steel material, hot rolled sheet and cold rolled sheet?

Since the beginning of this year, the global 09CUPTIRE-A steel material steel pipe industry, like many other industries, is facing severe market situation. The difference is that novel coronavirus pneumonia is not only affected by the epidemic, but also closely linked to the oil and gas industry, and the global 09CUPTIRE-A steel material steel tube industry will also suffer from the "flash collapse" of international oil prices in March.