Development of low-cost NM400 wear-resistant steel plate

NM400, also known as tungsten wear-resistant steel plate, is a new type of wear-resistant steel plate that has been developed for improved wear resistance, especially for use in construction, mining, and other heavy-duty applications. It is made of a high-alloyed steel with extreme hardness and wear resistance and is the most commonly used wear-resistant steel plate in China.
    
NM400 wear-resistant steel plates have excellent properties such as high hardness and wear-resistance, good plasticity and toughness, resistance to heating, corrosion, abrasion and wear, etc. Its wear-resistant index reaches 400, which is 4-5 times that of ordinary steel. In addition, it can be used in outdoor exposed environment for many years without rusting and it has weldability and bendability.
    
The development of NM400 wear-resistant steel plates is of great significance to the production of various types of mine machinery and engineering machinery in construction, mining, and transportation. The low-cost NM400 wear-resistant steel plates could reduce production costs, increase production efficiency, and improve product quality.
    
The process of developing NM400 wear-resistant steel plate is complicated and requires multiple processes. Firstly, the steel plate is heated for hot rolling or cold rolling forming. Then, it goes through pickling and descaling, surface leveling, and finally coating. The coating makes the surface of NM400 wear-resistant steel plate extremely wear-resistant and prolongs its service life.
    
The development of NM400 wear-resistant steel plate was made possible by advanced materials and technologies. Firstly, advanced alloying elements were used in the production process, such as chromium, nickel, and molybdenum, to increase steel hardness and wear resistance. Secondly, new processes such as quenching and tempering, surface rolling and thermal-mechanical control were used to refine the microstructure of the steel to further improve its strength and wear resistance.
    
Finally, coatings can be used to improve the wear resistance of NM400 wear-resistant steel plates. Commonly used coatings include chromium plating, epoxy powder coating, and others. These coatings can improve corrosion resistance, acid and alkali resistance, and friction resistance of the wear-resistant steel plate.
    
In short, the development of low-cost NM400 wear-resistant steel plates plays an important role in improving wear resistance, reducing costs, and increasing efficiency. The application of advanced materials and technologies has enabled NM400 wear-resistant steel plate to have excellent properties such as high strength, wear resistance, and corrosion resistance.

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