Chemical composition of Q390C steel plate: C ≤ 0.20, Si ≤ 0.50, Mn ≤ 1.7, P ≤ 0.030, S ≤ 0.030, Nb ≤ 0.07, V ≤ 0.20, Ti ≤ 0.20, Cr ≤ 0.30, Ni ≤ 0.50, Cu ≤ 0.30, N ≤ 0.015, Mo ≤ 0.10, Al ≤ 0.015. The mechanical properties of Q390C steel plate are: yield strength ≥ 390 MPa, tensile strength 470-620 MPa, elongation after fracture ≥ 18%, impact energy 34J. en10025 S460ML, Q390C steel plate is used for bridges, vehicles, ships, workshops and other large structural parts, high and medium pressure Petrochemical vessels, boiler tubes, pipes, superheaters, pressure vessels, heavy machinery, etc. application.
In order to further promote the ultra-low emission process and the technological innovation of flue gas treatment technology in China's steel industry, the China Institute of Metals and Beijing China-Japan Energy Conservation and Environmental Protection Engineering Technology Co., Ltd. (hereinafter referred to as Beijing China-Japan Alliance) will carry out technical cooperation to promote the activated coke dry process The application of desulfurization and denitrification technology in iron and steel enterprises, the signing ceremony of technical cooperation between the two parties was successfully held recently at the Chinese Institute of Metals.
en10025 S460ML and so on steel structure engineering steel has good plasticity, which can make the structure have obvious deformation before being destroyed, so as to avoid brittle failure of structure. The good plasticity of steel can adjust the local peak stress to redistribute the stress, and improve the ductility of components, so as to improve the seismic capacity of the structure. The impact toughness of en10025 S460ML and so on steel structure engineering steel is good, which can improve the ability of resisting dynamic load and avoid the occurrence of cracks and brittle fracture.