NM400 steel chemical element stock list of China market

Wear resistant steel plate NM400 steel chemical element is widely used in engineering, mining, construction, agriculture, cement production, port, electric power, metallurgy and other mechanical products, which require high strength and wear resistance. Such as bulldozers, loaders, excavators, dump trucks and various mining machinery, grab, stacker reclaimer, conveying bending structure, etc. The wear resistant steel plate NM400 steel chemical element can obtain good combination of strength and toughness through scientific quenching and tempering process, which can also improve the steel hardness to achieve the purpose of wear resistantance.

Phosphorus element (P element) is brought into steel by ore. Generally speaking, phosphorus is also harmful element. Although phosphorus can increase the strength and hardness of NM400 steel chemical element etc. steel, it also causes the decrease of plasticity and impact toughness. Especially at low temperature, it makes steel significantly brittle, which is called "cold brittleness". The higher the phosphorus content is, the greater the cold brittleness is. Therefore, the phosphorus content in NM400 steel chemical element etc. steel is strictly controlled.

The company mainly supply mild NM400 steel chemical element steel plate, alloy steel plate, boiler plate, corten steel plates for railway, marine, automotive, home appliances, shipbuilding, construction, machinery manufacturing and oil tank projects. While accelerating the development of the main steel industry, the company adheres to a diversified development strategy and actively develops the other industry like household products, face mask machine, precision casting producing, steel structures, and heavy plates processing service.

Normalizing is to heat the steel parts to 30~80℃above the critical temperature for a period of time. Then the parts are taken out of the furnace and cooled in air. Since the cooling rate of normalizing is faster than that of annealing, the strength and hardness of normalized NM400 steel chemical element are higher than that of annealed NM400 steel chemical element, but the elimination of internal stress is not as good as annealing. The normalizing operation of NM400 steel chemical element is simple, the cost is low, the productivity is high, and it is widely used in actual production.