Products Description
Compared with ordinary Q235B steel plate (tensile strength of about 400MPa), the strength of A516Gr70 is increased by more than 20%. More importantly, it is subjected to special normalizing treatment (air cooling after heating to a specific temperature), just like stretching the steel plate, the internal grain is more uniform, and the toughness is increased by more than 50%. This treatment process allows it to withstand both high pressure and cold tests of -45 ° C.
Pressure armor: In the 10-meter-high storage tank, the pressure at the bottom is equivalent to that of five cars concentrated on an area the size of the palm of your hand. The A516Gr70 has a yield strength of more than 260MPa, which is enough to carry liquid pressure as high as a 30-story building.
Low-temperature armor: An investigation into an LNG storage tank accident in Russia in 2018 found that the toughness of ordinary steel decreased by 60% at -30 ° C, while A516Gr70 still maintained good ductility at -45 ° C.
Welding bell cover: When the submerged arc welding process is used, the strength of the welded joint can reach more than 95% of the base material, which is far better than the 85% level of the ordinary steel plate.
Anti-corrosion barrier: By adding trace copper element (about 0.2%), atmospheric corrosion resistance is increased by 30%, and the service life of coastal chemical plants is extended by 5-8 years.
China one-stop steel processing procurement
Through years of understanding and precipitation of steel, Yuxin Group has now become a mature steel processing and manufacturer, providing various products for many construction companies and steel structure companies around the world. Thanks to Yuxin Group's professionalism and integrity, it has become a world-renowned enterprise.
