In production and operation, the company always attaches great importance to product 15mm S690QL alloy steel plate quality. Product quality is stable, performance index is superior, after-sales service is in place, the company's products have been exported to the United States, Southeast Asia, Africa, the Middle East and other countries and regions, occupying a large part of the overseas market 15mm S690QL alloy steel plate. And a large number of famous enterprises at home and abroad have formed a solid strategic partnership with the company.
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 15mm S690QL alloy steel plate 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.
EN10025-2 S355JR low alloy steel grade is equivalent to GB Q345B in Chinese standard. For the normal thickness, these two steel grades are both owned 345MPa yield strength. Plate S355JR+N indicates that the S355JR steel plate must be done Normalized heat treatment when rolling for improve the steel strength and weldability. Our mill would roll 15mm S690QL alloy steel plate, S355JR alloy steel plate under as rolled or control rolled when customers' have not requested any heat treatment in their P/O.
In these countries, the impact of the epidemic in South Korea is relatively serious, and in other countries, the current epidemic control is more appropriate. However, it is understood recently that the epidemic control in South Korea has begun to show a positive trend, and the impact of the epidemic will gradually slow down in the future. Therefore, as far as the direct export of 15mm S690QL alloy steel plate and so on steel is concerned, the overall impact is relatively limited.