NM400 Steel Plate : Uses, Composition, Properties
What is steel grade NM400?
Is NM400 steel good?
NM400 is a type of wear-resistant steel plate. “NM” stands for the Chinese pinyin initials of “耐” (nài, meaning wear-resistant) and “磨” (mó, meaning abrasion). The number 400 refers to the Brinell hardness (HB) value, which, in this context, generally ranges from 360 to 420 for domestic NM400.
Is NM400 bullet proof?
No, although NM400 has high wear resistance and hardness, it does not have sufficient ability to withstand and prevent penetration by bullets. However, NM500 has bulletproof capabilities.
What is the HRC of nm400 steel?
The surface Brinell hardness of NM400 typically ranges from 360 to 420 HBW.
NM400 vs AR400
The surface hardness is different, but other chemical compositions are comparable. NM400 hardness: 360-420 HBW, AR400 hardness: 360-440 HBW. NM400 is more economical and affordable than AR400.
What is nm400 steel used for?
Forklift
Backhoe
Tipper
Trailer
Applications of NM400 Steel Plate
NM400 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, NM400 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, NM400 is often used as an alternative to Hardox 400 wear plates.
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AISI AR400 Steel,JIS G3193 (CN NM400#) Download
Properties of NM400 Steel Plate
| Property | Value |
|
Density
|
7.85 g/cm³ |
|
Tensile Strength
|
≥1000 MPa |
|
Yield Strength
|
≥400 MPa |
|
Elongation
|
≥12% δ |
|
Temperature Resistance
|
-20°C |
|
Longitudinal Impact Energy Absorption
|
≥30 (KV2) J |
| Hardness |
360-450 HB |
|
Section centre Brinell hardness
|
360-450 HB
|
How Is NM400 Steel Made?
The smelting process is basically the same for the NM400/G3193/AR400and 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 65Mn Gauge Steel?
What Are the Disadvantages of Using NM400 Steel Plate?
-
Poor Weldability:
Although NM400 wear-resistant steel plate has good weldability, certain specific types of chromium stainless steel have poor weldability and may require special attention. -
Cutting Issues:
While NM400 can be cut, the cutting process may result in issues such as beveling, noise, soot, and ultraviolet radiation.
What Are the Advantages of Using NM400 Steel Plate?
- High Wear Resistance:
NM400 steel’s wear resistance is 15-20 times that of ordinary steel and 5-10 times that of low alloy steel plates. - Excellent Heat and Impact Resistance:
NM400 maintains stability at high temperatures, allowing usage up to 500°C, with customized options for up to 1200°C. Its dual-layer metal structure with a metallurgical bond layer ensures the wear-resistant layer remains intact under impact, making it suitable for conditions involving vibration and strong operational demands. - Good Processing and Connectivity:
The Q235 steel substrate ensures toughness and plasticity, allowing for various connection methods like welding and bolting. NM400 can be customized in thickness and processed to different specifications, supporting machining, cold bending, welding, and bending, making it user-friendly and efficient for maintenance.
OUR PROCESS
Leveling
Welding
Shearing
Bending
Slitting
Laser Cutting
Plasma Cutting
Oxyfuel Cutting
Get in Touch
You can contact us by email. You may also submit your request. If you have any questions about the products, please feel free to contact us. We will try our best to solve your problem within 24 hours.
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