Description
NM500 Wear-Resistant Steel Plate
NM500 is a high-strength, wear-resistant steel plate engineered for exceptional durability and performance in demanding environments. With a Brinell hardness of 470-540 HBW, NM500 offers superior abrasion resistance, making it ideal for applications requiring robust protection against wear and impact. Designed to extend equipment lifespan, reduce maintenance costs, and enhance operational efficiency, NM500 is a cost-effective solution for industries facing harsh abrasive conditions.
Key Features
- High Hardness: Achieves a Brinell hardness of 470-540 HBW, ensuring outstanding resistance to abrasion and surface wear.
- Superior Strength: Boasts tensile strength exceeding 1500 MPa, providing excellent structural integrity under heavy loads and impacts.
- Good Weldability: Can be welded using standard procedures, with proper consumables, maintaining material properties during fabrication.
- Formability: Despite its high hardness, NM500 retains reasonable formability for cutting, bending, and shaping into various configurations.
- Impact Resistance: Maintains toughness even at low temperatures, ensuring reliability in challenging conditions.
- Cost Efficiency: Reduces downtime and maintenance costs by providing longer-lasting components, offering a high cost-performance ratio.
NM500 Chemical Composition
| Element | % Content |
|---|---|
| C | ≤ 0.30 |
| Si | ≤ 0.70 |
| Mn | ≤ 1.60 |
| P | ≤ 0.025 |
| S | ≤ 0.010 |
| Cr | ≤ 1.00 |
| Mo | ≤ 0.60 |
| Ni | ≤ 1.00 |
NM500 Mechanical Properties
| Property | Unit | Typical Value |
|---|---|---|
| Hardness (Brinell) | HBW | 470 – 530 |
| Yield Strength | MPa | ≥ 1000 |
| Tensile Strength | MPa | 1250 – 1600 |
| Elongation (δ5) | % | ≥ 10 |
| Impact Toughness | J (at -20°C) | ≥ 24 (Charpy V-Notch)* |
| Thickness Range | mm | 6 – 100 |
Heat Treatment
- Quenching: Heated to 830-880°C, followed by oil or water quenching for optimal hardness.
- Tempering: Optional reheating to 200-600°C to enhance toughness, depending on application requirements.
- Sub-Temperature Treatment: Utilizes intercritical hardening to refine grain structure, improving toughness by over 50% compared to conventional methods.
Dimensions
- Thickness: 1.2mm – 300mm
- Width: 50mm – 4200mm
- Length: 50mm – 18000mm
- Custom sizes available upon request.
Standards
- Conforms to GB/T 24186 (Chinese standard for high-strength wear-resistant steel).
- Comparable to international grades like Hardox 500, AR500, and JFE-EH500.
Advantages
- Extended Equipment Life: Outlasts standard steel, reducing replacement frequency.
- Reduced Maintenance: Minimizes downtime and repair costs in abrasive environments.
- High Cost-Performance Ratio: Thinner plates can be used without sacrificing strength, improving payload and fuel efficiency.
- Versatile Fabrication: Suitable for welding, cutting, and bending, enabling complex component designs.
Limitations
- Machinability: High hardness may require specialized tools and techniques for machining.
- Corrosion Resistance: Limited compared to stainless steels; additional coatings may be needed for corrosive environments.
Applications
- Mining
- Construction
- Recycling
- Cement and Power
- Engineering Machinery
- Infrastructure
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