1.     High-strength steel plate (high-strength plate) refers to the grade Q460 steel, which has high strength, especially in normalized or normalized and tempered state with high comprehensive mechanical properties.

2.     Mainly used for large ships, bridges, power station equipment, medium and high pressure boilers, high pressure vessels, rolling stock, lifting machinery, mining machinery and other large welded structural parts.

3.     Q460 is a high strength low alloy steel. Q460 brand representation: its steel number is marked with "Q", which represents the yield point of the steel, that is, the yield strength. The latter number indicates that the yield point value of 460 represents 460 MPa, the mega is the sixth power of 10, and the Pa is the pressure unit Pascal.

4.     Q460 is the plastic deformation of the steel when the force reaches 460 MPa, that is, when the external force is released, the steel can only maintain the shape of the force and cannot return to the original shape. This strength is larger than that of the general steel.

5.     The general quality grade symbols are A, B, C, D, and E. Q460 appropriately increases the content of micro alloying elements on the basis of ensuring low carbon equivalent.

6.      Good weld ability requires a low carbon equivalent of the steel, while an increase in micro alloying increases the strength of the steel and increases the carbon equivalent of the steel. However, it is good to increase the carbon equivalent, so it does not affect the welding performance of the steel.