Manufacturing technology of NM400 steel chemical element

The main applications of normalizing are as follows:① For low carbon steel, NM400 steel chemical element. The hardness of low carbon steel after normalizing is slightly higher than that after annealing, and the toughness is also better, so normalizing can be used as the pretreatment of cutting.② For medium carbon steel, normalizing can be used as the final heat treatment instead of quenching and tempering treatment, or as the preparation treatment before surface quenching by induction heating.③ Normalizing can be used in tool steel, bearing steel, carburizing steel and so on, which can eliminate or inhibit the formation of network carbide, thus obtaining the good microstructure needed for spheroidizing annealing.④ Normalizing can refine the cast structure and improve the machinability of steel castings.

The hardness value of NM600 wear-resistant steel plate reaches 600 HBW, and it is generally used in extremely severe wear occasions, and mainly used to replace cast steel, chromium alloy cast iron and surface hardening metal NM400 steel chemical element. Although the hardness of NM600 wear-resistant steel plate is very high, we can machine, weld and cut it. Although the hardness of NM600 wear-resistant steel plate is very high, it still has high impact toughness.

Plate 20 to 30mm thick NM400 steel chemical element product: 20*1400*11400, 20*2100*7000, 20*2500*6200, 20*2933*7300, 20*3200*4400, 20.9*2851*7000, 21*2100*8810, 21.5*1630*13480, 22*3400*13000, 23.1*2590*7790, 25*1950*10150, 25*1950*9700, 25*2100*8400, 25*2100*8650, 25*2400*11600, 25*2400*8200, 28*2170*13000, 30*1600*10720, 30*1600*8600.

Medium and thick plates NM400 steel chemical element are mostly used in construction engineering, machinery manufacturing, container manufacturing, shipbuilding, bridge construction, etc. Medium and thick plates can also be used to make all kinds of containers, furnace shells, furnace plates, automobile static steel plates and so on. Among them, shipbuilding steel plate is used to make marine and inland ships. The shipbuilding steel plate NM400 steel chemical element is required to have high strength, plasticity, toughness, good cold bending performance, welding performance and corrosion resistance.