NM450 High-Strength Abrasion-Resistant Steel Plate: Cost-Effective Wear Solution for Heavy Industries.
Engineered for Mining, Construction & Material Handling
NM450 is a quenched-and-tempered (Q&T) wear-resistant steel plate with Brinell hardness of 410–490 HBW, offering superior abrasion resistance at 30% lower cost than imported equivalents. Ideal for excavator buckets, crusher liners, and bulldozer blades, NM450 combines high impact toughness (≥30J at -20°C) with excellent weldability (AWS D1.1 compliant).
Certifications & Key Advantages
- GB/T 24186 & ISO 6506 Certified: Guaranteed hardness uniformity (±20 HBW).
- ASTM A514 Equivalent: Meets EN 10025-6 standards for structural integrity.
- Custom Sizes: Thickness 5–120mm (±0.5mm), width up to 4,000mm.
- MOQ 1 Piece: Flexible ordering for prototyping or bulk projects.
Technical Specifications
Chemical Composition (Max % Weight)
| Element | C | Si | Mn | P | S | Cr | Ni | Mo | B |
|---|---|---|---|---|---|---|---|---|---|
| NM450 | 0.26 | 0.70 | 1.60 | 0.025 | 0.015 | 1.50 | 1.00 | 0.50 | 0.004 |
Alloy Design:
- Chromium (1.5%): Enhances surface hardness against abrasive ores.
- Boron (0.004%): Improves hardenability during quenching.
- Low Carbon (0.26%): Balances weldability and crack resistance.
Mechanical Properties
| Yield Strength (Rp0.2) | Tensile Strength (Rm) | Elongation (A5) | Impact Toughness (-20°C) | Hardness (HBW) |
|---|---|---|---|---|
| ≥1,250 MPa | 1,500–1,700 MPa | ≥10% | ≥30J (ISO 148-1) | 410–490 |
Performance Highlights:
- 1,700 MPa Tensile Strength: 25% stronger than NM400.
- 30J Impact Toughness: Withstands subzero Arctic mining conditions.
- Quenched & Tempered: Uniform microstructure for consistent wear resistance.
Applications
- Mining: Dump truck liners, rock screens, and conveyor chutes.
- Construction: Grader blades, demolition shears, and crane buckets.
- Agriculture: Plowshares, harvester blades, and tillage tools.
- Recycling: Shredder hammers, waste compactor plates.
Fabrication Guidelines
- Cutting: Plasma/laser with pre-heat (150°C for >25mm thickness).
- Welding: Use E7018 electrodes at 100–150°C interpass temperature.
- Bending: Minimum radius = 4x plate thickness (cold-formed).
- Machining: Carbide tools with 12–18° rake angle.
Quality Assurance
- Ultrasonic Testing: EN 10160 Class E2 for zero slag inclusions.
- Hardness Mapping: 7-point depth testing (surface to core).
- Certifications: EN 10204 3.1 MTRs, CE/PED compliance.
Industry Innovations
- Hybrid Plates: NM450 bonded to Q345B mild steel for cost savings.
- 3D Profiling: CNC-formed crusher jaws with 92% material efficiency.
- Eco-Friendly Production: 18% lower CO2 emissions vs. traditional methods.
Competitive Advantages
- Lifespan: 4x longer than AR400 in coal handling.
- Lead Time: 15–25 days (MOQ 1 piece).
- Global Stock: EU, North America, and APAC hubs.
Logistics & Compliance
- Packaging: VCI-coated + wooden crates for海运.
- Temperature Limits: Avoid service temperatures >300°C.
- Custom Coatings: Optional epoxy (EP) or galvanized (GI) finishes.
Logical Connectors:
- Comparison: While NM400 is cheaper, NM450 offers higher hardness.
- Example: For instance, NM450 is used in coal mining buckets.
- Cause-Effect: High chromium (1.5%) boosts abrasion resistance.
Request Free Samples or Technical Datasheets Today!
Certifications: ISO, ASTM, EN. Global delivery available.
Packing And Delivery
