Description
NM550 Wear-Resistant Steel Plate
NM550 is a high-strength, wear-resistant steel plate intended for applications that require outstanding durability and resistance to abrasion and impact. With an average Brinell hardness of 550 HBW, NM550 is engineered to extend the service life of critical components in harsh environments, making it an ideal choice for industries such as mining, quarrying, construction, and material handling.
Key Features
- Superior Hardness: With an average hardness of 550 HBW, NM550 is highly resistant to slide and impact abrasion.
- High Strength: Composed of a low-carbon steel base with a metallurgically bonded alloy wear-resistant layer, ensuring robust performance under extreme conditions.
- Versatility: Suitable for cutting, bending, and welding, allowing for easy integration into various structures and components.
- Durability: Designed to withstand high-impact and abrasive environments, reducing maintenance costs and downtime.
- Customizable: Available in various thicknesses (e.g., 3mm, 6mm, 10mm, 12mm, 15mm) to meet specific application requirements.
NM550 Chemical Composition
| – Carbon (C) | ≤ 0.38% |
| – Silicon (Si) | ≤ 0.70% |
| – Manganese (Mn) | ≤ 1.70% |
| – Phosphorus (P) | ≤ 0.020% |
| – Sulfur (S) | ≤ 0.010% |
| – Chromium (Cr) | ≤ 1.20% |
| – Nickel (Ni) | ≤ 1.00% |
| – Molybdenum (Mo) | ≤ 0.70% |
| – Boron (B) | ≤ 0.005% |
| – Others | Trace amounts of Nb, V, Ti (varies by manufacturer) |
NM550 Mechanical Properties
| – Hardness | 530–580 HBW (Brinell Hardness) |
| – Yield Strength | ≥ 1250 MPa (approximate, varies by thickness) |
| – Tensile Strength | ≥ 1450 MPa (approximate, varies by thickness) |
| – Elongation | ≥ 8% (in 50mm, varies by thickness) |
| – Impact Toughness | ≥ 20 J at -20°C (Charpy V-notch, varies by manufacturer) |
| Heat Treatment | Quenching and tempering |
Benefits
- Extended Service Life: The high hardness and toughness of NM550 significantly prolong the lifespan of components in abrasive environments.
- Cost Efficiency: Reduces maintenance and replacement costs by minimizing wear and tear.
- Lightweight Design: Enables weight reduction in equipment without compromising strength, improving operational efficiency.
- Reliable Performance: Metallurgical bonding between the wear-resistant layer and substrate ensures consistent performance under high stress.
Technical Specifications
- Standard: Conforms to GB/T 24186-2009 for high-strength abrasion-resistant steel.
- Chemical Composition: High-carbon alloy with optimized elements for enhanced hardness and toughness.
- Surface Treatment: Hot-rolled with optional milling or coating for specific applications.
- Thickness Range: Typically available from 3mm to 35mm, customizable based on requirements.
- Processing: Can be cut, bent, welded, or machined to suit specific designs.
- Stock Availability: Readily available in stock for various sizes, with custom orders supported.
Applications
- Mining and Quarrying
- Construction
- Material Handling
- Earthmoving
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