High yield strength nm500 plate thickness size specifications

The characteristic of niobium in NM500 plate thickness size etc. steel material is to increase the recrystallization temperature of austenite, so as to achieve the purpose of refining austenite grains. In general, the amount of niobium added in steel material is less than 0.05%, and the contribution of niobium above 0.05% to strengthening and toughening will no longer be obvious.

The microstructure of NM400 wear plate, NM500 plate thickness size depends on the chemical composition. In addition to carbon, ordinary wear-resistant plate generally contains vanadium, tungsten, chromium, aluminum and other alloy elements. Carbon is the basic element of NM400 wear plate, NM500 plate thickness size. Increasing the carbon content in the steel to the level of "balanced carbon" can improve the wear resistance of the steel. When the carbon content is insufficient, the amount of carbides will decrease correspondingly, and the wear resistance and cutting performance of the steel will decrease.

The NM500 plate thickness size processing performance is good. Due to the uniform control of steel plate performance, excellent performance coordination and good toughness guarantee, the steel plate bending processing, drilling, cutting and other mechanical processing properties are excellent. In addition, the surface of the NM500 plate thickness size steel plate is smooth and beautiful by inhibiting and removing oxide scale from slab heating to rolling process and heat treatment in furnace without oxidation atmosphere.

Since the outbreak of the new crown pneumonia epidemic this year, the Iron and Steel Association has closely followed and found that, with the exception of March, the production and operation of the steel industry has maintained a positive growth despite the low rate of resumption of work and production in other industries. Superimposed on the pull of a series of national policies in the later period, the steel industry effectively supported the development of the national economy.