NM450 Steel Plate : Uses, Composition, Properties
What is steel grade NM450?
Is NM450 steel good?
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
What is the difference between NM450 and Hardox 450?
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.
What is the hardness of NM450?
The Brinell hardness (HB) value of NM450 ranges from 420 to 480.
What is NM400 steel?
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
What is nm450 steel used for?
Forklift
Backhoe
Tipper
Trailer
Applications of NM450 Steel Plate
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.
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AISI AR450 Steel,JFE-EH450 (CN NM450#) Download
Properties of NM450 Steel Plate
| Property | Value |
|
Density
|
7.85 g/cm³ |
|
Tensile Strength
|
≥1200 MPa |
|
Yield Strength
|
≥450 MPa |
|
Elongation
|
≥10% δ |
|
Temperature Resistance
|
-20°C |
|
Longitudinal Impact Energy Absorption
|
≥24 (KV2) J |
| Hardness |
360-450 HB |
|
Section centre Brinell hardness
|
360-450 HB
|
How Is NM450 Steel Made?
The smelting process is basically the same for the NM450/EH450/AR450 and the normal mild steel, but more requirement for the purtity of steel for NM400 steel. During the smelting process, the carbon element is added to the expected value and making the carbon element distriuted evenly by technical method.
What Are The Advantages And Disadvantages Of Using NM450 Gauge Steel?
What Are the Disadvantages of Using NM450 Steel Plate?
-
Poor Weldability:
While NM450 has good overall weldability, certain types of chromium stainless steel within it may present challenges, requiring special attention during the welding process. -
Cutting Issues:
Cutting NM450 steel can generate problems such as beveling, noise, soot, and ultraviolet radiation. -
High Cost:
NM450 steel tends to be more expensive compared to other types of wear-resistant steel plates, which may impact budget considerations for certain projects.
What Are the Advantages of Using NM450 Steel Plate?
- High Wear Resistance：
The wear resistance is 15-20 times that of ordinary steel and 5-10 times that of low-alloy steel plates. - Excellent Impact Performance:
Featuring a dual-metal structure and high bonding strength, the wear-resistant layer absorbs energy without detaching, making it suitable for operations involving vibration and impact. -
Good Heat Resistance:
The wear-resistant steel plate maintains strong stability at high temperatures, usable up to 500°C, and can be customized to meet requirements up to 1200°C. -
Good Machinability:
The wear-resistant steel can be processed into different specifications, suitable for machining, cold bending, welding, and bending, making it easy to use and maintain, thus reducing labor intensity.
OUR PROCESS
Leveling
Welding
Shearing
Bending
Slitting
Laser Cutting
Plasma Cutting
Oxyfuel Cutting
Get in Touch
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grace@zgtsteel.com
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