NM450 vs NM 500
When it comes to wear-resistant steel, NM 500 and NM 750 are both commonly used. However, NM 450 is also an option that can offer similar levels of wear resistance, making it a great choice for certain applications. Here, we’ll take a look at how NM 450 compares to NM 500 and NM 750 in terms of performance, applications, and cost.
NM 450 is a high-performance wear plate made from a unique manufacturing process. It offers excellent mechanical properties due to its unique quench and tempering process, resulting in a hardness of 400HBW (around 42 Rockwell) and a guaranteed minimum yield strength of 450 MPa. This makes the steel suitable for wear-resistant components and ideal for applications where maximum impact and wear resistance are needed.
Compared to NM 500, NM 450 has a slightly lower hardness (400HBW compared to 450HBW on NM 500). However, the biggest difference is in their yield strength. NM 450 has a guaranteed minimum yield strength of 450 MPa, while NM 500 has a minimum yield strength of 500 MPa. Despite its slightly lower yield strength, NM 450 is still far tougher and more durable than mild steel, making it ideal for applications in which impact resistance is essential.
Finally, when compared to the tougher NM 750, the key difference is strength. NM 450 has a guaranteed minimum yield strength of 450 MPa, considerably less than the 750 MPa on NM 750. NM 750 also has a guaranteed minimum hardness of 750HBW, which is significantly higher than NM 450’s 400HBW. That said, NM 450 still has a significantly higher yield strength and wear-resistance rating than mild steel, making it a great option for wear-resistant applications.
When it comes to cost, NM 450 is considerably less expensive than NM 500 and NM 750, making it a great choice for those on a tight budget. NM 450 has been especially designed to offer excellent value for money, helping to keep costs to a minimum.
In conclusion, NM 450 is a great wear-resistance option that offers excellent mechanical properties, impact resistance, and wear resistance as well as outstanding value for money. While it is not as strong or tough as NM 500 and NM 750, it is still far tougher and more durable than mild steel, making it an ideal choice for certain applications.




