NM500 wear resistant steel sheet is a kind of product with bright brightness in wear-resistant steel plate
. The hardness of wear-resistant plate is large, and the scope of use is wide. It can be realized in almost engineering and machinery industries. The performance of the NM360 wear resistant steel sheet is relatively good, and the direct reason for its wide use is that the density is relatively large.
The density of the NM500 wear resistant steel sheet is higher than that of some materials, so that the hardness is relatively large. Wear resistant steel sheet Generally, the density of steel is 7.85kg/dm cube. After quenching to obtain martensite structure, it is tempered in the temperature range of 450-600 °C; or after tempering at 650 °C, it is slowly cooled to 350-600. °C.
Or after tempering at 650 ° C, long-term heating in the temperature range of 350 ~ 650 ° C, the wear resistant steel sheet is brittle. If the embrittled wear plate is reheated to 650 ° C and then cooled quickly, the toughness can be restored, so it is also called reversible temper brittleness. The high temperature temper brittleness is manifested by the increase of the toughness-brittle transition temperature of the wear plate.
NM500 wear resistant steel sheet The sensitivity of high temperature temper brittleness is generally expressed by the difference between the toughness and the brittle transition temperature of the toughened state and the embrittled state. The higher the tempering and brittleness of the high temperature temper, the higher the ratio of the fracture points along the fracture of the wear-resistant steel plate. The effect of the elements in the wear resistant steel sheet on high temperature temper brittleness is divided into two aspects. On the one hand, it is an impurity element such as phosphorus, tin, antimony, etc. which causes high temperature temper brittleness of the wear plate; and on the other hand, it is in different forms and different An alloying element that promotes or slows the temper brittleness of high temperatures.
And NM500 wear resistant steel sheet, for example, chromium, manganese, nickel, silicon, etc. to promote, while molybdenum, tungsten, titanium, etc. to delay, carbon also plays a role in promoting.