NM400 (360–440 HBW), offers the best toughness and workability; suitable for operating conditions involving moderate wear and some impact; a cost-effective choice for routine wear applications.
NM450 (420–480 HBW), features 15%–30% higher wear resistance than NM400 and strikes a superior balance between hardness and toughness; the best value-for-money choice for most applications.
NM500 (470–530 HBW), boasts the highest hardness and superior wear resistance, with a service life 1.8–2.5 times that of NM400 under extreme wear conditions. However, it has the lowest toughness and presents challenges—as well as higher costs—regarding processing and welding; it is suitable only for extreme wear environments with low or no impact.
The choice of wear-resistant plate should be based on a comprehensive assessment of wear intensity, impact loads, processing requirements, and budget.

Time：03/08/2026 16:32:55

Answers

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