NM450 wear resistant steel equivalent

    
    Introduction
    
    NM 450 is a wear resistant steel plate produced by Swedish company SSAB. It is also known as NM or AR450. It is usually available as a plate or as a steel strip. 450 HBW/ 450 Brinell hardness is the level of hardness to which NM 450 can be heat treated.NM 450 is a weldable, abrasion-resistant steel, that is known for its high strength and excellent impact and abrasion resistance properties.
    
    NM 450 is an abrasion-resistant steel produced by SSAB that, when heat-treated, has a hardness of 450 Brinell. This grade is the most widely used abrasion-resistant steel and is ideal for applications that require medium/high strength and superior abrasion resistance. NM 450 is also known for its excellent weldability and formability.
    
    Composition
    
    The standard for NM 450 is EN 10051, which defines its chemical composition. NM 450 is composed of the following elements:
    
    • Carbon - 0.30% max
    
    • Silicon - 0.20-1.20% max
    
    • Manganese - 0.80-1.70% max
    
    • Chromium - 0.50-1.00% max
    
    • Molybdenum -0.50-1.00% max
    
    • Phosphorous - ≤0.035% max
    
    • Sulphur - ≤0.03% max
    
    • Vanadium - 0.10- 0.50 % max
    
    • Nickel - 0.50- 1.00 % max
    
    Properties
    
    NM 450 has excellent mechanical properties at both ambient and elevated temperatures. It has excellent weldability and formability, as well as a very low coefficient of thermal expansion. It has excellent resistance to abrasion, impact and fatigue and is also highly resistant to corrosion. NM 450 has a hardness of 450 HBW/ 450 Brinell and a tensile strength of 960 MPa.
    
    Applications
    
    NM 450 is commonly used in structural and engineering applications where strength and durability are paramount. It is used in the manufacture of dump truck bodies, bulldozers, excavator buckets, crushers, sieves, chutes etc. NM 450 is also used in the agricultural industry, where it is used to manufacture combine harvesters, ploughs and cultivators.
    
    Equivalents
    
    NM 450 is equivalent to Industeel’s XAR 450. XAR 450 is a wear-resistant steel with a hardness of 450 HBW/ 450 Brinell and is equivalent in hardness to NM 450. XAR 450 is ideal for applications requiring comprehensive resistance to wear, high impact and abrasion.
    
    Conclusion
    
    NM 450 is an abrasion-resistant steel produced by SSAB that has a hardness of 450 HBW/450 Brinell. It has excellent weldability, formability and corrosion resistance, as well as a very low coefficient of thermal expansion. NM 450 is commonly used in structural and engineering applications, as well as the agricultural industry. Its equivalent, XAR 450, is also available and is equivalent in hardness to NM 450.