NM400 steel vs NM450 steel

    
    NM400 steel and NM450 steel are both wear-resistant steel grades with a hardness of up to 500 HBW. Both steels are popular low-alloy materials that are used in a variety of industries due to their high levels of wear resistance. However, some differences do exist between the two steel grades that may help machine shops decide which material is best suited for their application.
    
    NM400 steel is a high-strength wear-resistant steel that offers good abrasion resistance, chemical resistance and formability. It is heat-treated and quenched from a low carbon alloy steel which gives it a higher wear resistance and strength than most other common steel grades. The steel is known for its excellent toughness, forming and welding capabilities, and is an excellent material for cutting tools, wear plates, buckets and other components.
    
    NM450 steel is a high-strength wear-resistant steel grade that offers good wear and corrosion resistance, chemical resistance and formability. It is a low-alloy steel with a moderate carbon content and high strength, allowing it to withstand higher stress levels than other steel grades. It is also highly resistant to corrosion due to its chemical composition, making it a popular choice for products such as cutting tools, buckets and other corrosion-prone components.
    
    When considering which steel to use for an application, there are several factors to consider. NM400 steel is more economical than NM450 steel however, NM450 steel offers more wear resistance and strength than NM400 steel. The higher strength of NM450 steel also makes it more suitable for use as cutting tools, buckets and other components that require higher wear and strength resistance.
    
    Overall, both NM400 steel and NM450 steel are very popular low-alloy materials with excellent wear and corrosion resistance. However, certain applications will require higher wear and strength than others, making NM450 steel a superior choice. Both steels can provide excellent performance when used in the right application, so it’s important to carefully consider which material is best suited for the job.