ZGT - Model NM450 -Abrasion Resistant Steel Plate
NM450 steel is a high-strength, wear-resistant steel plate with an average Brinell hardness of 450 HBW. Its mechanical properties are 3 to 5 times those of ordinary low-alloy steel plates, with a yield strength above 950 MPa and tensile strength around 1180 MPa.
NM450 steel’s excellent wear resistance and high hardness (430-470 HB) make it ideal for use in mining, metallurgy, construction, and machinery manufacturing. It is commonly used for wear plates, liners, and conveyor belts, significantly extending the service life of equipment.
The steel also has good cold bending and processing performance, making it versatile for various applications. Despite its high cost, its durability and economic benefits make NM450 a preferred choice in many industrial field
NM450 is a Chinese wear-resistant steel grade, while Hardox 450 is produced by the Swedish company SSAB. Both steel grades have almost identical chemical compositions and mechanical properties, but they adhere to different standards. NM450 is considered more cost-effective compared to Hardox 450.
The Brinell hardness (HB) value of NM450 ranges from 420 to 480.
NM400 is a high-strength wear-resistant steel plate with mechanical properties 3 to 5 times those of ordinary low-alloy steel. It features a surface hardness of 360 to 450 HB and is widely used in engineering, mining, coal mining, environmental, and metallurgical machinery. With a high carbon content (4-5%) and chromium content (25-30%), its Cr7C3 carbides volume fraction exceeds 50%, resulting in a macro hardness of HRC 56 to 62
NM450 steel plate has a broad range of applications, primarily in the fields of mining machinery, construction machinery, and port machinery. Its three most common application areas are as follows:
1.Quarry and Construction Machinery:
Examples: Gravel and stone conveying equipment (such as routes, chutes, hoppers), crushing equipment, shovels, excavators, forklifts, trailers, bulldozers, dump trucks, dredgers, crushers, grinders, screens, hoppers, mixers, and concrete aggregate molds.
2.Mining Machinery:
Examples: Fans, dischargers, spiral chutes, crushers, grinders, screens, and conveyors.
3.Cement and Refractory Material Plants:
Examples: Crushers, chutes, and cyclone separators.
In these applications, NM450 wear-resistant plates serve as wear-resistant components. They can withstand harsh working environments and heavy loads, ensuring the long-term stable operation of the equipment. Due to its high cost-performance ratio, NM450 is often used as an alternative to Hardox 450 wear plates.