High-strength steel plate, also known as high-strength steel plate, has high strength, especially in the normalizing or normalizing and tempering state, and has high comprehensive mechanical properties. Mainly used in large ships, Bridges, power plant equipment, medium and high pressure boilers, high pressure vessels, rolling stock, lifting machinery, mining machinery and other large welded structural parts.
High strength steel plate is roughly divided into: Q390, Q420, Q460, Q500, Q550, Q690 and so on.
High strength steel plate is widely used in large ships, Bridges, power plant equipment, medium and high pressure boilers, high pressure vessels, rolling stock, lifting machinery, mining machinery and other large welded structural parts.
The production process of high-strength steel plates requires low carbon equivalent of steel, and the increase of microalloying elements will increase the carbon equivalent of steel while increasing the strength of steel. However, the increase in carbon equivalent is very small, so it will not affect the welding performance of the steel.
In general, high-strength steel plates are widely used in various large-scale engineering projects because of their excellent strength and good weldability.
