What is NM400 steel equivalent British standard

    
    NM400 steel is a high-strength wear-resistant steel originating from China. It is widely used in the manufacturing and engineering industry. The steel has a hardness of 400 HB, which stands for ‘Hardness Brinell’ rating, which indicates its high strength and excellent wear resistance.
    
    NM400 steel has very good weldability and can be welded either with conventional welding methods or with specialized welding wires. The yield strength of the material is very high which makes it useful for tough jobs. The high toughness of the material makes it exceptionally resistant to impact and abrasion.
    
    The British Standard classifies steel into various categories. NM400 steel is known as BS EN ISO 4957 and as such falls within the Hardened Steel category. This is a category that is used for tool steels such as high-speed steel, cold work steel and hot work steel. Within the Hardened Steel category, the NM400 steel is classified as a grade of approximately 0.8%. This is a high grade of steel and is suited for demanding applications such as rollers, shafts, and shaft axles.
    
    NM400 steel is a superior alternative to other wear-resistant steels as it offers high strength and excellent wear resistance. The high grade alloying elements in the material offer excellent corrosion resistance and make it suitable for several industrial applications.
    
    NM400 steel, in its British Standard equivalent, is known as BS EN ISO 4957 type 645H, which is 745H in the American Standard. The British Standard equivalent has a yield strength of 450 MPa and is primarily used in the automotive industry, in mining equipment and in oil and gas applications. Its superior welding capabilities and high resistance to wear makes it an excellent choice for applications requiring wear protection and strength.