What is NM400 equivalent ASTM steel

    
    The NM400 steel is a high-performance steel developed by Nippon Steel for meeting the needs of high-precision, high-strength products. The steel has a high-strength and high-purity structure with added New Pure High-Performance Alloying Elements, which improved the homogeneity and suppress the precipitation of alloy carbides, enabling a higher machining accuracy.
    
    Compared to conventional high-performance steels, NM400 steel has the following advantages: improved hardness, greater wear resistance, better wear resistance, improved flattening and curling resistance, improved weldability and improved cold formability.
    
    NM 400 Equivalent
    
    The equivalents of NM400 are wear-resistant steel of grade Brinar 400 and Astor Armor 400, both developed by Swedsteel. These steels offer almost the same level of wear resistance as NM400 but with a narrow tolerance range. Brinar 400 is called BHN400 while Astor Armor 400 is called ASTM A514 Gr Q.
    
    Advantages of NM 400 Equivalent
    
    Brinar 400 and Astor Armor 400, the equivalents to NM400, offer excellent wear resistance and good weldability. Brinar 400 has better toughness and ductility at temperatures below 0°C and is weldable with any standard welding method.
    
    Heating of relatively thick plates may be required in order to achieve optimal welding results. However, users should be aware of traces of silicon, as this may reduce weldability.
    
    By contrast, Astor Armor 400 is a quenched and tempered steel with a higher yield strength than Brinar400. It is also about two times more rigid and provides economical efficiency that is valuable in applications where weight savings are important.
    
    Applications of NM 400 Equivalent
    
    NM400 can be used in several applications, such as truck and container bodies, bulldozers, excavators, buckets and abrasion resistant liners. Its equivalents can also be used in the same way.
    
    Brinar 400 is suitable for a wider range of temperatures, while Astor Armor 400 is especially suitable for parts and components faced with wear and high impact. Brinar 400 and Astor Armor 400 have good weldability, thus making them suitable for high-stress applications such as boots, bulldozers, and excavators.
    
    Conclusion
    
    NM 400 is high-performance steel used in a variety of applications. Its equivalents, Brinar 400 and Astor Armor 400, offer similar wear resistance and weldability as NM400, however, with a higher yield strength. As a result, Brinar400 and Astor Armor 400 are suitable for high-stress applications such as excavator boots, buckets, and bulldozers.