NM450 vs NM400
NM450 and NM400 steel plates are both wear-resistant plates created by NISCO, a Chinese state-owned steel company. Both of these plates are engineered to have superior hardness, toughness, and strength, making them well-suited to wear-resistant applications. Although they are similar in terms of their properties and performance, when it comes to selecting between the two, NM450 and NM400 steel plates have their own unique advantages and disadvantages.
NM450 is a wear-resistant steel plate with a hardness of 450 HBW, indicated by its name. It typically contains 0.8% niobium for increased toughness, as well as about 0.12% nitrogen. It is a high-performance material that is created by using a code-controlled vacuum degassed process and has a significantly higher wear resistance than NM400. It features excellent cold-forming capabilities and delivers superb weld-resistance, making it a great choice for applications such as construction machinery, mining machinery, and other high-end engineering components.
NM400 is a wear-resistant steel plate with a hardness of 400 HBW, indicated by its name. It is also called BISALLOY® Wear 400. It is typically produced with magnetism after heat treatment, meaning that cutting is difficult and almost impossible to do without spark-less machines. NM400 steel offers excellent wear and impact resistance and is considered to have a good weldability. It is used in applications such as dump truck liners, quarry equipment liners, and conveyor liners.
The main differences between NM450 and NM400 steel plates lie in their chemical composition and performance. While they both feature high wear-resistance, NM450 is significantly higher than NM400 in terms of hardness and strength. NM450 is also more ductile in nature, which makes it a better choice for applications that require forming, bending, or pressing. However, NM400 does offer higher weldability than NM450 and is better-suited for applications that require welding.
When choosing between NM450 and NM400, it is important to consider the specific application. If a part requires high wear and impact resistance, such as in dump truck liners or quarry equipment liners, then NM450 would be the better choice. However, if weldability is the main concern, then NM400 is the ideal option. Additionally, the cost of each steel plate should also be taken into consideration, since they have differences in their production process and chemical composition. For instance, NM450 is more expensive due to its increased hardness and toughness.
In conclusion, both NM450 and NM400 steel plates are excellent wear-resistant materials that can offer outstanding performance. However, when it comes to making a decision on which of the two to select, cost and the application should be taken into account. NM450 is better-suited for applications that require high wear and impact resistance, while NM400 is better for applications that need weldability. Ultimately, the choice will come down to finding the right material that fits the part and its application.
