What is the difference between NM450 and NM400
NM400 and NM450 are two varieties of abrasion-resistant steel plates produced by Japan's Nippon Steel Corporation. These two steel plates are primarily used in applications that involve abrasive wear. Though they are frequently used interchangeably, they are actually quite different in composition and performance.
NM400 steel is a high-performance steel plate used for a wide range of applications ranging from bridges to engineering machinery and construction. It has excellent shock-resistant properties and good weldability. It is a low-alloy steel plate that provides good toughness and has a nominal tensile strength of 420-MPa. It has a minimum yield strength of 400-MPa and a minimum elongation of 19%.
NM450 steel is a high-wear-resistant steel plate that boasts a nominal yield strength of 450-MPa and a nominal tensile strength of 540-MPa. It has excellent bending and welding properties. It is mainly used in mining, truck bed liners, loader buckets, conveyors, slurry transport lines and shot-blast equipment. It has superior abrasion-resistant properties, which make it a highly sought-after material in many industrial applications.
When considering which plate to use for a particular application, it is important to consider the difference between NM400 and NM450. Though they are both abrasion-resistant steel plates, they have different compositions and performance characteristics. In general, NM450 is considered to be a better choice for applications that involve extreme abrasion or impact. It has higher tensile strength and better abrasion-resistant properties than NM400. It also provides better protection against erosion due to its higher resistance to corrosion and cracking.
NM400 steel is often used for less demanding applications where abrasion resistance is important, such as in agricultural equipment. It is also used in some structural steel applications. It is an economical choice and provides excellent weldability and machinability.
In conclusion, NM400 and NM450 are two types of abrasion-resistant steel plates used to protect against wear in a variety of applications. While they are often used interchangeably, they have different compositions and performance characteristics. NM450 is generally considered to be the better choice for applications that involve extreme abrasion and impact, as it has a higher tensile strength and better abrasion-resistant properties than NM400 steel. NM400 steel is an economical choice and can be used in less demanding applications. Ultimately, the best choice will depend on the specific application and the environment in which it will be used.
