Features of S355JR steel plate

S355JR steel plate has excellent mechanical properties and belongs to high-strength low-alloy structural steel. In the quenched state, the tensile strength, yield strength and impact toughness of the S355JR steel plate are more excellent. In addition, the S355JR steel plate also has good weldability and corrosion resistance, and its thermal expansion coefficient, thermal conductivity and electrical conductivity also show excellent performance.

S355JR steel plate is widely used in construction, bridges, ships, machinery manufacturing, railway construction and other fields, especially in large-scale projects and occasions requiring high strength, S355JR steel plate is used in the manufacturing fields of load-bearing structures and large steel components.

The application temperature of S355JR steel plate depends on its specific model and chemical composition, as well as the specific processing and use environment. Normally, S355JR steel plate can be used at room temperature, and the maximum operating temperature is about 200-300 ℃. If this temperature range is exceeded, it may cause plastic deformation of S355JR steel plate or a decrease in mechanical properties, thereby affecting its use effect and safety. In the case of high temperature or cold environment, it is necessary to select the appropriate steel type and processing method to ensure its excellent tensile strength, toughness and thermal conductivity at different temperatures.

In addition, when using S355JR steel plate, it is necessary to pay attention to its large thermal expansion coefficient, and the deformation and stress caused by thermal expansion and contraction should be fully considered in the design to ensure its long-term use effect.

S355JR