The hardness of NM450 vs mild steel hot rolled

    
    NM 450 is a wear-resistant steel plate with a hardness of 450 HBW. It is mainly used in applications where high wear resistance is required, such as Earthmoving and Mining equipment, truck bodies, buckets, garbage cans and dump trucks. The toughness and weldability of NM 450 make it suitable for building and repairing of machines.
    
    NM 450 is much harder than mild steel hot rolled (HR) 750. The approximate hardness for mild steel HR 750 is 185 HBW. The higher the HBW value, the harder and more resistant the material is to wear. NM 450 is approximately 2.5 times harder than mild steel HR 750.
    
    The high wear resistance of NM 450 ensures that the plate maintains it's properties, even when exposed to a high-pressure environment. This makes NM 450 an ideal choice for applications that require superior wear resistance. Additionally, NM 450 is much tougher than mild steel HR 750, allowing the material to withstand greater impact and mechanical stress.
    
    The surface of NM 450 is exceptionally well-suited for painting and other coating processes. The base of the steel is very smooth, allowing for the application of powder coatings, enamel and other finishes. Mild steel HR 750, on the other hand, has a surface that is not as well suited for painting as NM 450.
    
    In summary, NM 450 offers higher wear resistance and toughness than mild steel HR 750. The high hardness of NM 450 makes it an ideal choice for applications that require maximum wear resistance. In addition, its smooth surface allows for easy coating and painting processes.