New technology of 09cuptire-a sheet coil cutting

Preheating cutting: The most effective way to prevent steel plate cutting cracks is to preheat before cutting. Before flame cutting, the steel plate is usually preheated, and the preheating temperature mainly depends on the quality level and thickness of the steel plate. The preheating method can be carried out with flame burner, electronic heating pad, or heating furnace. In order to determine the preheating effect of the steel plate, the required temperature should be tested at the heating point.

Sulfur is a very harmful element in 09CUPTIRE-A sheet coil steel. The presence of sulfur will increase the hot brittleness of steel, reduce the various mechanical properties of 09CUPTIRE-A sheet coil steel, and reduce the weldability, impact toughness, fatigue resistance and corrosion resistance of steel.

South Korean 09CUPTIRE-A sheet coil steel industry said that the slowdown in economic growth superimposed on the impact of the epidemic, steel demand weakened, exports were sluggish, enterprises are facing huge operating pressure. Due to the delay in the resumption of work of Chinese 09CUPTIRE-A sheet coil steel enterprises, the steel inventory is growing rapidly. According to statistics, China's steel circulation inventory reached 23.75 million tons in February, the highest since 2006, with an estimated total inventory of 33.45 million tons.

ASTM Corten B steel is a hot-rolled structural steel product with better atmospheric corrosion resistance under Technical delivery conditions. ASTM Corten B steel conforms to ASTM standard, with yield strength of 355MPa and 345mpa, and the 09CUPTIRE-A sheet coil yield strength depends on the thickness. The tensile strength of ASTM Corten B steel is 470-630 MPa.