The weathering steel plate has outstanding corrosion resistance. Whether it is an offshore drilling platform or a harsh corrosive environment such as the chemical industry, weathering steel plates can effectively prevent corrosion of the plates and extend the service life of the plates. In addition, the weathering steel plate has high strength, fatigue resistance and toughness, which are suitable for various characteristics of construction steel plates. Because of its wide application and large market demand, the price of S460M material, weather resistant steel plate has attracted more and more attention.
Vigorously develop circular economy: the company adheres to the development path of circular economy, realizes the efficient utilization of energy and S460M material resources, implements "four closed circuits" for renewable gas, industrial water, solid waste and waste heat steam according to the reduction of resource consumption - reuse - recycling, vigorously promotes advanced technologies such as energy-saving new technologies, new processes, S460M material new materials, and promotes the competition of enterprises Struggle.
S355J2 steel plate S460M material rolling process is controlled rolling process. In the rolling process, the ingot rolling temperature is 1000-1050℃; in the first stage, the low-speed and large reduction rolling process is adopted, the high-temperature stage is 950-1000℃, the rolling speed is 1.6-2.0m/s, the S460M material single reduction rate is 15-20%, and the cumulative reduction rate is 40-45%, so as to ensure sufficient deformation of ingot. In the first stage, the start rolling temperature is 910-930℃, and the finish rolling temperature is ≤ 870℃.
The deoxidation ability of Al is much stronger than that of Si and Mn when aluminum element (Al element) is added into steel as deoxidizer or alloying element. The main role of aluminum in S460M material etc. steel is to refine grain size and fix nitrogen in steel, so as to significantly improve the impact toughness of steel and reduce the tendency of cold brittleness and aging. Al element can also improve the corrosion resistance of steel, especially when used with molybdenum, copper, silicon, chromium and other elements. The wear resistance of chromium molybdenum steel and chromium steel can be increased by containing Al element.
Both parties shall confirm the S460M material material object and the quality of the products, confirm the reasons for the defects and the quality of the products, and sign the quality inspection agreement. Major quality objections shall be reported to relevant leaders in a timely manner, and shall be discussed and solved with the S460M material steel plant.