NM500 steel is a high-strength abrasion resistant steel plate defined under the Chinese standard GB/T 24186. This steel is specifically designed to withstand high wear conditions and provide extended service life in challenging environments.
NM500 steel
With a hardness range of 470-540 HBW, NM500 is widely used in applications where resistance to abrasion is a primary concern, such as in mining equipment, construction machinery, and other heavy-duty applications.
The strength of NM500 wear-resistant steel is more than 3 times that of ordinary low-alloy steel plates, and the wear-resistant performance can be increased by 2-3 times, significantly extending the service life of the steel plates.
Key Specifications of NM500 Steel Plate
| Item | Details |
|---|---|
| Standard | GB/T 24186 |
| Hardness | ≥470 HBW (typically 470–540 HBW) |
| Delivery Condition | Q+T (Quenched & Tempered) |
| Thickness | 3 mm – 100 mm |
| Width | 1500 – 2300 mm |
| Surface | Black surface |
The hardness of NM500 should be consistently ≥470 HBW, not 420–480 HBW. Any lower value does not meet NM500 standard requirements.
Global Equivalent Grades of NM500
| China | Japan | Germany | Sweden |
|---|---|---|---|
| NM500 | JFE-EH500 | Dillidur 500V | Hardox 500 |
Chemical Composition of NM500
| Element | Content (%) |
|---|---|
| C | ≤ 0.38 |
| Mn | ≤ 1.70 |
| Cr | ≤ 1.50 |
| Ni | ≤ 1.00 |
| Mo | ≤ 0.65 |
| B | 0.0005 – 0.006 |
Mechanical Properties of NM500 wear-resistant steel
| Property | Value |
|---|---|
| Hardness | ≥470 HBW |
| Tensile Strength | ≥1350 MPa |
| Elongation | ≥7% |
| Impact Energy | ≥21J (-20°C / -40°C) |
Processing Tips for NM500 Steel Plate
NM500 is extremely hard, which makes processing more challenging. Proper handling is critical.
1. Cutting
Recommended: Laser cutting / Plasma cutting
Flame cutting: requires preheating (100–150°C)
- Prevents edge cracking
2. Welding
Use low hydrogen electrodes
Preheat: 150–200°C
- Reduces risk of hydrogen-induced cracking
3. Bending
Requires large bending radius (R)
Avoid cold forming in low temperatures
Typical Applications of NM500 Steel
NM500 is best used in high wear structural parts, NOT precision components.
- Dump truck liners
- Crusher jaw plates
- Excavator bucket edges
- Conveyor liners
- Concrete batching plant liners
NM500 vs NM450 vs NM400
| Grade | Hardness | Service Life | Cost |
|---|---|---|---|
| NM400 | ~400 HBW | Standard | Low |
| NM450 | ~450 HBW | Medium | Medium |
| NM500 | ≥470 HBW | 20–30% longer | Higher |
Choose NM400 → general wear
Choose NM450 → balanced solution
Choose NM500 → extreme wear, reduce downtime. In harsh environments, NM500 offers better ROI despite higher initial cost
Why NM500 Steel Plate is the Best Choice for Wear Resistance
NM500 stands out because it delivers:
- Extreme hardness (≥470 HBW)
- Long service life (2–3× improvement)
- Reduced maintenance costs
- Reliable performance in harsh environments
NM500 Steel Plate
If your application involves severe abrasion, heavy impact, and high replacement costs, NM500 abrasion resistant steel plate is one of the most cost-effective long-term solutions.
If you need more information, Gnee can provides:
- Mill Test Certificate (MTC)
- Stable hardness guarantee
- Fast delivery & cutting services
For more information, you can feel free to contact us any time.
Contact now to get NM500 Abrasion Steel Quote
What is NM500 material?
NM500 Steel is one steel grade in GB standard GB 24186. NM 500 steel is a high-strength, wear-resistant / abrasion resistant steel known for its superior hardness and durability. This steel is specifically designed to withstand high wear conditions and provide extended service life in challenging environments.
What is the difference between Hardox 500 and NM500?
Hardness: NM500 typically has a hardness range of around 470-540 HBW (Brinell hardness), while Hardox 500 typically falls within the range of 470-530 HBW. The hardness level indicates their ability to withstand abrasive wear and impact.
What is the difference between AR500 and NM500?
Key implication: AR500 is preferred in North America for compliance with ASTM certifications, while NM500 dominates Asian markets . Both steels exceed 500 HBW surface hardness, but AR500 shows marginally higher tensile/yield strength and better low-temperature toughness
What are the properties of NM500 steel?
Some key properties of NM500 steel include: Hardness: Typically, NM500 steel has a hardness range of 470-550 HBW (Brinell Hardness), indicating its exceptional resistance to abrasion and wear. Strength: NM500 steel offers high strength, enabling it to withstand impacts and abrasive forces in harsh operating conditions.