Wear Resistant Steel Nm400

NM400 Abrasion Resistant Steel plate

NM400 steel plate has quite high mechanical strength, and its mechanical properties are 3 to 5 times that of ordinary low alloy steel plates. This high-strength characteristic allows NM400 steel plates to perform well when withstanding high loads and impacts, and can significantly improve the wear resistance of machinery-related components, thereby extending the service life of machinery and reducing production costs. In addition, the surface hardness of NM400 steel plate usually reaches 360~450HB, making it excellent in wear resistance.
In the alloy wear-resistant layer of NM400 wear-resistant steel plate, the carbon content is as high as 4 to 5%, and the chromium content is as high as 25 to 30%. This special chemical composition makes the volume fraction of Cr7C3 carbide in its metallographic structure reach more than 50%, the macro hardness is HRC56~62, and the hardness of chromium carbide is as high as HV1400~1800. Since carbides are distributed vertically in the wear direction, the wear resistance of NM400 wear-resistant steel plate is more than doubled even when compared with cast alloys of the same composition and hardness.

GBT24186 NM400 abrasion resistant steel plate chemical composition:

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