What is the difference between NM400 and NM450

    
    NM400 and NM450 are two grades of wear resistant steel that are often used for wear parts, construction and heavy equipment. Although both grades are designed for applications exposed to everyday wear and tear, each grade has its own unique features and benefits.
    
    NM400
    
    NM400 is a high strength low alloy wear resistant steel, which offers superior wear resistance. It is commonly used to create components such as wear plates, liners, and conveyor belts. NM400 has extremely strong adhesion and offers superior impact resistance. It can also be heat treated to improve its strength, ductility, and weldability making it ideal for heavy wear applications.
    
    NM450
    
    NM450 is a wear resistant steel alloy with a hardness of over 600HBW (63 HRC). This wear resistant alloy is extremely durable and can endure even in the most demanding applications. NM450 has superior corrosion resistance and can hold up against a variety of harsh environments including salt, oil and humidity.
    
    NM450 is even tougher than NM400 and can withstand more abrasive wear and tear. It is an ideal choice for high-end applications that are exposed to a lot of stress and impact. Since it is extremely tough, it offers better protection against sliding abrasion and gouging as well as heavy impact.
    
    Comparison
    
    NM400 and NM450 both have their advantages and disadvantages. NM400 is best suited for high wear applications that require impact and better heat resistance. NM450 is the tougher and more durable steel that is designed for applications exposed to high levels of stress and impact. It offers better resistance against sliding and gouging as well as heavy impact.
    
    In conclusion, NM400 and NM450 are two high strength, wear resistant steel grades with unique strengths and capabilities. Each grade is specialized for a particular application, and choosing the right grade depends on the application and its requirements.