NM400 500 Wear Resistant Steel Plate

‌NM500 Ultra-High Hardness Abrasion-Resistant Steel Plate: Premium Alloy for Extreme Wear Applications‌. ‌Engineered for Mining, Quarrying & Heavy Machinery‌ NM500 wear-resistant steel plate is a quenched-and-tempered (Q&T) alloy with a ‌minimum surface hardness of 470 HBW‌, designed to outperform standard AR450/500 grades in high-stress abrasive environments. Combining exceptional impact toughness (≥24J at -20°C) with 1,250 MPa tensile strength, NM500 extends equipment lifespan by 3-5x in ore processing, mining buckets, and cement crushers.

‌NM500 Ultra-High Hardness Abrasion-Resistant Steel Plate: Premium Alloy for Extreme Wear Applications‌.

‌Engineered for Mining, Quarrying & Heavy Machinery‌

NM500 wear-resistant steel plate is a quenched-and-tempered (Q&T) alloy with a ‌minimum surface hardness of 470 HBW‌, designed to outperform standard AR450/500 grades in high-stress abrasive environments. Combining exceptional impact toughness (≥24J at -20°C) with 1,250 MPa tensile strength, NM500 extends equipment lifespan by 3-5x in ore processing, mining buckets, and cement crushers.


‌Certifications & Key Advantages‌

  • ‌ISO 15601 Compliance‌: Certified for weldability and crack resistance.
  • ‌ASTM A514 Equivalent‌: Exceeds EN 10025-6 standards for structural integrity.
  • ‌Precision Tolerances‌: Thickness 6–150mm (±0.5mm), width up to 3,800mm.
  • ‌Global Compliance‌: Meets JIS G3106, GB/T 24186, and AS/NZS 3678.

‌Technical Specifications‌

‌Chemical Composition (Max Weight %)‌

Element C Si Mn P S Cr Ni Mo Ti B CEV
NM500 0.38 0.70 1.70 0.020 0.010 1.20 1.00 0.65 0.050 0.0006 0.65

‌Alloy Design Philosophy‌:

  • ‌High Carbon (0.38%)‌: Optimizes surface hardness for rock/gravel abrasion.
  • ‌Boron (0.0006%)‌: Enhances hardenability during quenching (JIS G4057).
  • ‌Low Sulfur (0.010%)‌: Reduces hot cracking in high-heat welds (AWS D1.1).

‌Mechanical Properties‌

Yield Strength (Rp0.2) Tensile Strength (Rm) Elongation (A5) Impact Toughness (-20°C) Hardness (HBW)
≥1,250 MPa 1,450–1,700 MPa ≥7% ≥24J (ISO 148-1) 470–550

‌Performance Highlights‌:

  • ‌1,700 MPa Tensile Strength‌: 40% stronger than standard NM400 plates.
  • ‌24J Charpy V-Impact‌: Maintains structural integrity in subzero Arctic operations.
  • ‌Custom Sizes‌: 6–150mm thickness, plasma-cut to ±2mm tolerance.

‌Applications‌

  1. ‌Mining‌: Dump truck beds, excavator bucket liners, and trommel screens.
  2. ‌Cement‌: Clinker crushers, raw mill liners, and conveyor chutes.
  3. ‌Construction‌: Bulldozer blades, grader edges, and demolition equipment.
  4. ‌Agriculture‌: Plowshares, harvester blades, and tillage tools.

‌Fabrication & Processing‌

  • ‌Cutting‌: Laser/plasma/oxy-fuel with pre-heating (150°C for >25mm).
  • ‌Welding‌: Use low-hydrogen electrodes (E7018) with 100–150°C pre-heat.
  • ‌Bending‌: Minimum radius = 5x plate thickness (hot-formed at 850–900°C).
  • ‌Machining‌: Carbide-tipped tools required for drilling/milling.

‌Quality Assurance‌

  • ‌Ultrasonic Testing‌: EN 10160 Class E3/S3 for zero internal defects.
  • ‌Hardness Mapping‌: 5-point depth testing (surface to core).
  • ‌Certifications‌: Mill test reports (EN 10204 3.2), CE/PED compliance.

‌Industry Innovations‌

  • ‌Hybrid Cladding‌: NM500 bonded to SS400 mild steel for cost efficiency.
  • ‌3D Profiling‌: CNC-formed curves for crusher jaws and shredder rotors.
  • ‌Eco-Quenching‌: Low-emission heat treatment reduces carbon footprint by 15%.

‌Competitive Advantages‌

  • ‌Lifespan‌: 5x longer than AR450 in iron ore processing.
  • ‌Lead Time‌: 20–30 days.
  • ‌Global Stock‌: Available in EU, North America, and Asia-Pacific hubs.

‌Logistics & Compliance‌

  • ‌Packaging‌: VCI-coated + edge protectors for Ocean Freight.
  • ‌Temperature Warning‌: Avoid service temperatures >300°C.
  • ‌Custom Coatings‌: Optional epoxy (EP) or polyethylene (PE) finishes.

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Luo Kaiwei Steel Company is a comprehensive steel supplier that produces a variety of carbon steel plates, carbon steel pipes, galvanized steel, carbon steel coils, and steel profiles.

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