The alloying elements of NM500 abrasion resistant steel plate mainly help its resistance to pressure strengthening, so that it will not cause unnecessary failures when the steel plate is in use. As we all know, the main requirement of NM500 abrasion resistant steel plate is to withstand pressure, because it is used for building support in most cases, and the pressure resistance requirement of NM500 abrasion resistant steel plate is relatively high.
Pearlite or dispersed precipitated alloy carbides are formed in the NM500 abrasion resistant steel plate to strengthen the steel. In order to form a certain amount of carbon-nitrides in microalloyed steel, the carbon content only needs to be 0.01-0.02%.
Therefore, carbon reduction is an inevitable trend in the development of NM500 wear-resistant plates, which can greatly improve the toughness and welding performance of NM500 abrasion resistant steel plate. A high Mn/C ratio is good for improving the yield strength and impact toughness of NM500 abrasion resistant steel plate.
