WStE380 carbon steel plate sheet development situation in China

The toughness of steel such as WStE380 carbon steel plate sheet is the ability of steel to absorb energy in the process of plastic deformation and fracture, and also the ability of steel to resist impact load. It is related to and different from the plasticity of steel. It is the comprehensive performance of strength and plasticity. The strength plasticity index of steel is obtained by static tensile test. When these indexes are used to bear the dynamic load structure, there are obvious limitations.

WStE380 carbon steel plate sheet, EN 10025 E355 steel plate / sheet is suitable for general building steel. Chemical composition and mechanical properties of EN 10025 E355 steel. EN 10025 E355 steel conforms to EN 10025 standard, equivalent to DIN 17100: ST60-2, NFA: a60-2, UNI 7070: FE590 steel grade.

Our company's WStE380 carbon steel plate sheet power boilers, heating furnaces of double bars, double high lines and medium and thick plates all adopt heat storage technology, which can fully use blast furnace gas; the ladle baking, Maerz active lime kiln and medium and thick plate heat treatment furnace all burn converter gas, which can improve the WStE380 carbon steel plate sheet utilization rate of secondary energy and realize negative energy steelmaking in steelmaking process.

Phosphorus is a very harmful element in WStE380 carbon steel plate sheet steel. With the increase of phosphorus content, the strength, flexion ratio and hardness of WStE380 carbon steel plate sheet steel increased, but the plasticity and toughness decreased significantly. In particular, the lower the temperature, the greater the impact on plasticity and toughness, increase the cold brittleness of steel.