Grade steel plate specification grade S690QL machinability

ASTM A588 is a high strength low alloy HSLA steel (high strength, low alloy) containing a small amount of alloying elements copper, chromium and AMP. Nickel. These alloying elements effectively improve the properties of A588 and expand its application range. Firstly, the alloy composition increases the steel plate specification grade S690QL yield point strength to 50 Ksi and the tensile strength to 70 Ksi. Secondly, A588 steel plate specification grade S690QL has high copper content, atmospheric corrosion resistance and long working time. Because of its excellent comprehensive performance, A588 angle steel is widely used in bridge, building and other structural fields.

Steel steel plate specification grade S690QL exports fell sharply year on year. According to the data of the General Administration of customs, 7.811 million tons of steel were exported from January to February, a year-on-year decrease of 27.0%; 2.041 million tons of imported steel, a year-on-year increase of 2.1%. Steel prices continue to fall. According to the monitoring of China Iron and Steel Industry Association, China's steel steel plate specification grade S690QL composite price index at the end of January was 105.48 points, down 0.58% month on month; at the end of February, the index continued to decline to 100.39 points, down 4.83% month on month.

steel plate specification grade S690QL 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 steel plate specification grade S690QL 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.

Our company has been established for 20 years and has accumulated rich experience in steel products. At the same time, it is often exported to Southeast Asia, Africa, South America and other countries. So you can rest assured that our steel plate specification grade S690QL products and our prices are very favorable. Because we have our own factory, there is no other cost, we can also carry out machining and so on.