In today's heavy industry sectors, choosing the right wear-resistant material is critical to extending equipment life and reducing downtime.
As a leading China NM400/NM500 Wear Plate Supplier, GNEE is a professional manufacturer with over 18 years of export experience, delivering high-performance abrasion-resistant steel plates to global customers. Our NM400 and NM500 wear plates are widely used in mining, construction, cement, and quarrying industries where durability and reliability are essential.
We are not just a trader - we are a direct factory supplier with advanced production lines, strict quality control systems, and strong OEM/ODM capabilities. If you are looking for stable supply, competitive pricing, and fast delivery, GNEE is your trusted partner.

China NM400/NM500 Wear Plate Supplier Overview
As a professional China NM400/NM500 Wear Plate Supplier, GNEE provides high-quality wear plates manufactured according to strict international standards.
NM400 and NM500 are abrasion-resistant steel grades known for their excellent hardness and wear resistance.
- NM400 Wear Plate: Brinell hardness around 400 HB, offering a good balance between wear resistance and formability.
- NM500 Wear Plate: Higher hardness (around 500 HB), designed for extreme wear conditions.
Our factory is equipped with modern rolling mills, heat treatment facilities, and testing equipment to ensure every plate meets customer specifications. From raw material selection to final inspection, every step is strictly controlled.

Factory Workshop: "Steel plate rolling production line"
NM400/NM500 Wear Plate Chemical Composition and Mechanical Properties
As a reliable China NM400/NM500 Wear Plate Supplier, we ensure stable chemical composition and mechanical performance for every batch.
Typical Chemical Composition (%)
| Grade | C | Si | Mn | P | S | Cr | Mo | Ni |
|---|---|---|---|---|---|---|---|---|
| NM400 | ≤0.24 | ≤0.70 | ≤1.60 | ≤0.025 | ≤0.010 | ≤1.50 | ≤0.50 | ≤1.00 |
| NM500 | ≤0.38 | ≤0.70 | ≤1.70 | ≤0.025 | ≤0.010 | ≤1.50 | ≤0.60 | ≤1.00 |
Mechanical Properties
| Grade | Hardness (HBW) | Yield Strength (MPa) | Tensile Strength (MPa) | Elongation (%) |
|---|---|---|---|---|
| NM400 | 360–440 | ≥1000 | ≥1200 | ≥10 |
| NM500 | 480–550 | ≥1200 | ≥1400 | ≥7 |
These properties make NM400 suitable for general wear environments, while NM500 is ideal for severe abrasion conditions.
Advantages of Choosing China NM400/NM500 Wear Plate Supplier
Working with a professional China NM400/NM500 Wear Plate Supplier like GNEE brings multiple benefits:
Superior Wear Resistance
NM400 and NM500 plates significantly extend service life compared to ordinary carbon steel, reducing replacement frequency.
Cost-Effective Solution
Although initial cost is higher, long-term savings are substantial due to reduced maintenance and downtime.
Excellent Processing Performance
NM400 offers good weldability and machinability, while NM500 maintains strength under extreme conditions.
Strict Quality Control
We provide:
- Mill Test Certificates (MTC)
- Third-party inspection (SGS, BV)
- Full traceability
Applications of NM400/NM500 Wear Plate
As a trusted China NM400/NM500 Wear Plate Supplier, we supply plates for a wide range of industries:
- Mining equipment (dump truck bodies, crushers)
- Construction machinery (excavators, loaders)
- Cement plants (liners, chutes)
- Steel plants (hoppers, feeders)
- Quarry and aggregate handling systems

Application Scene: "Dump truck with wear-resistant steel plate"
NM400 vs NM500 Wear Plate Comparison
Understanding the difference between NM400 and NM500 helps you choose the right material from a China NM400/NM500 Wear Plate Supplier.
| Feature | NM400 | NM500 |
|---|---|---|
| Hardness | Medium | High |
| Wear Resistance | Good | Excellent |
| Formability | Better | Moderate |
| Application | General wear | Extreme wear |
Selection Tip:
- Choose NM400 for applications requiring bending and welding.
- Choose NM500 for maximum wear resistance and longer service life.
Why Choose GNEE as Your China NM400/NM500 Wear Plate Supplier
GNEE stands out among China NM400/NM500 Wear Plate Suppliers due to:
Strong Manufacturing Capability
- 150+ employees
- Annual production capacity: 30,000 tons
- Advanced heat treatment technology
Global Export Experience
- We export to over 150 countries, including Southeast Asia, the Middle East, Europe, and South America.
Customization Support
- Thickness: 3mm–100mm
- Width: up to 2500mm
- Length: up to 12000mm
- Cutting, drilling, and surface treatment available
Fast Delivery & Packaging
- We ensure safe packaging and timely delivery for all orders.

Shipping & Packaging: "Steel plates packed and loaded into containers"
NM400/NM500 Wear Plate Specifications Table
As a professional China NM400/NM500 Wear Plate Supplier, we provide the following standard specifications:
| Parameter | NM400 | NM500 |
|---|---|---|
| Thickness | 3–100 mm | 3–100 mm |
| Width | 1000–2500 mm | 1000–2500 mm |
| Length | 2000–12000 mm | 2000–12000 mm |
| Delivery Condition | Quenched & Tempered | Quenched & Tempered |
| Surface | Shot blasted / Painted | Shot blasted / Painted |
| Standard | GB/T 24186 | GB/T 24186 |
FAQ – China NM400/NM500 Wear Plate Supplier
What is the difference between NM400 and NM500 wear plate?
NM500 has higher hardness and better wear resistance, while NM400 offers better formability.
Can NM400/NM500 plates be welded?
Yes, both can be welded with proper preheating and low-hydrogen electrodes.
What is NM450 steel?
NM450 is a high-strength, wear-resistant steel grade defined under the Chinese GB/T 24186 standard. It is specifically engineered for applications requiring exceptional abrasion resistance, making it ideal for heavy-duty machinery in industries like mining, construction, quarrying, and material handling.
What is the difference between Hardox 400 and NM400?
The chemical composition of NM400 and Hardox 400 affects their wear resistance, strength, and performance under stress. Hardox 400 generally contains a higher chromium (Cr) and nickel (Ni) content, which contributes to better hardness and toughness, while NM400 maintains a balance between cost and performance.
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?
AR500: Higher carbon (C: ~0.38–0.45%), chromium (Cr: ~1.5%), and boron (B: 0.0005–0.006%) for enhanced hardness and corrosion resistance . NM500: Lower carbon (C: ≤0.38%), added nickel (Ni: ≤1.0%) and molybdenum (Mo: ≤0.65%) for balanced weldability and toughness .
What is NM 500 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 NM400 steel?
NM400: A Chinese-standard wear-resistant steel (NM stands for "Nai Mo," meaning wear-resistant in Chinese), NM400 typically has a Brinell hardness (HBW) of 360–440. It's known for its balance of hardness, toughness, and cost-effectiveness, making it popular in Asia and beyond.
Conclusion: Your Reliable China NM400/NM500 Wear Plate Supplier
If you are looking for a dependable China NM400/NM500 Wear Plate Supplier, GNEE is your ideal choice. With strong manufacturing capabilities, strict quality control, and global export experience, we deliver wear-resistant steel plates that meet the highest industry standards.
👉 Contact us today to get a free quote and technical support for NM400/NM500 wear plates - boost your equipment lifespan and reduce operational costs now!




