Description
AR450 Abrasion-Resistant Steel Plate
AR450 is an abrasion-resistant steel plate with a nominal hardness of 450 Brinell (BHN). It offers higher wear resistance than AR400 while maintaining good formability and weldability. AR450 is ideal for applications involving high impact and sliding abrasion. Designed for demanding applications, AR450 offers an excellent balance of hardness, ductility, and formability, making it ideal for industries facing high wear and impact challenges. This quenched and tempered steel provides enhanced durability, reducing downtime and maintenance costs while ensuring reliable performance in harsh environments.
Key Features
- Higher hardness than AR400
- Superior wear and abrasion resistance
- Reliable performance in tough environments
- Good balance of strength and toughness
AR450 Chemical Composition
| Element | Percentage (%) |
| Carbon (C) | 0.18 – 0.30 |
| Manganese (Mn) | 0.70 – 1.70 |
| Phosphorus (P) | 0.025 max |
| Sulfur (S) | 0.010 max |
| Silicon (Si) | 0.15 – 0.50 |
| Chromium (Cr) | 0.40 – 1.20 |
| Molybdenum (Mo) | 0.20 – 0.50 |
| Nickel (Ni) | 0.50 max |
| Boron (B) | 0.0005 – 0.005 |
AR450 Mechanical Properties
| Property | Typical Value |
| Brinell Hardness (BHN) | 420 – 470 |
| Tensile Strength | 1400 – 1650 MPa (~203,000 – 239,000 PSI) |
| Yield Strength | 1150 MPa (167,000 PSI) |
| Elongation (in 2″) | ~10 – 12% |
| Impact Toughness | Varies; consult mill data |
| Formability | Bendable with larger radii (e.g., 6t for plates >0.75” thick, transverse to rolling direction) |
Available Sizes
| Grade | Thickness | Width | Length |
| AR 450 | 3/16″ – 2″ | 48″ – 96″ | Up to 480″ |
Benefits
- Extended Equipment Life: Superior abrasion resistance minimizes wear, extending component longevity.
- Cost Efficiency: Reduces maintenance and replacement costs, maximizing production uptime.
- Custom Fabrication: Can be cut using plasma, laser, or oxy-fuel methods to meet specific project needs.
- Balanced Properties: Offers greater hardness than AR400 while maintaining good formability compared to AR500.
Applications
- Mining and Quarrying: Crushers, chutes, hoppers, and conveyor liners.
- Construction: Excavator buckets, bulldozer blades, and dump truck beds.
- Material Handling: Wear plates, liners, and cutting edges.
- Recycling and Agriculture: Shredders, granulator knives, and tillage equipment.
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