Abrasion Resistant Plate – Hardax 400/450/500
Typical Chemical Composition (%)
| Grade | C | Mn | Si | Cr | Mo | B |
|---|---|---|---|---|---|---|
| Rock Star 400 | ≤0.30 | ≤1.70 | ≤0.70 | ≤1.50 | ≤0.60 | ≤0.005 |
| Rock Star 450 | ≤0.30 | ≤1.70 | ≤0.70 | ≤1.80 | ≤0.60 | ≤0.005 |
| Rock Star 500 | ≤0.35 | ≤1.70 | ≤0.70 | ≤2.00 | ≤0.60 | ≤0.005 |
Abrasion Resistant Plates – Hardax 400 / 450 / 500
Hardax 400, 450, and 500 are high-performance abrasion-resistant (AR) steel plates specially designed to deliver exceptional durability, impact resistance, and extended service life in aggressive wear environments. These plates are engineered to withstand intense wear and tear, reducing maintenance costs and increasing the productivity of heavy-duty industrial machinery.
With a balance of toughness, hardness, and workability, Hardax AR plates are widely used across industries like mining, quarrying, construction, cement, earthmoving, recycling, and material handling.
Grades & Features:
| Grade | Nominal Hardness (HBW) | Key Characteristics | Common Applications |
|---|---|---|---|
| Hardax 400 | 400 | Excellent combination of wear resistance and formability | Tipper bodies, liners, loaders, dozer blades |
| Hardax 450 | 450 | Higher hardness with superior impact resistance | Excavator buckets, dump truck beds, hoppers |
| Hardax 500 | 500 | Maximum wear resistance for the most demanding applications | Chutes, crushers, cutting edges, shredder components |
Key Benefits:
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Consistent hardness and wear resistance
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Superior impact strength, even at low temperatures
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Excellent formability and weldability
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Longer wear life, reducing downtime and replacement costs
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High surface finish quality, suitable for precision applications
Typical Chemical Composition (% by Weight):
| Grade | C | Mn | Si | Cr | Mo | Ni | B |
|---|---|---|---|---|---|---|---|
| Hardax 400 | ≤0.30 | ≤1.70 | ≤0.70 | ≤1.40 | ≤0.60 | ≤1.00 | ≤0.005 |
| Hardax 450 | ≤0.30 | ≤1.70 | ≤0.70 | ≤1.50 | ≤0.60 | ≤1.00 | ≤0.005 |
| Hardax 500 | ≤0.35 | ≤1.70 | ≤0.70 | ≤1.80 | ≤0.60 | ≤1.00 | ≤0.005 |
Exact values may vary depending on mill and batch specifications.
Mechanical Properties:
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Hardness Range:
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Hardax 400: 360 – 440 HBW
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Hardax 450: 420 – 480 HBW
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Hardax 500: 470 – 540 HBW
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Yield Strength: Up to 1400 MPa
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Tensile Strength: Up to 1800 MPa
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Elongation (min): 10–14%
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Density: 7.85 g/cm³
Fabrication Guidelines:
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Welding: Can be welded with conventional methods (preheating recommended based on thickness)
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Forming: Cold bending possible; best performance in 400 & 450 grades
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Cutting: Oxy-acetylene, plasma, or laser cutting recommended for precision
Available Sizes:
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Thickness: 6 mm to 100 mm
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Width: Up to 2500 mm
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Length: Up to 12000 mm
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Custom dimensions and CNC profile cutting available on demand.
Equivalent Grades:
| Hardax Grade | Equivalent Brands |
|---|---|
| Hardax 400 | Hardox 400, Abrex 400, Rockstar 400, NM400 |
| Hardax 450 | Hardox 450, Abrex 450, Rockstar 450, NM450 |
| Hardax 500 | Hardox 500, Abrex 500, Rockstar 500, NM500 |
Applications Across Industries:
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Mining & Quarrying: Liners, dump truck bodies, conveyor chutes
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Earthmoving & Construction: Excavator arms, bulldozer blades, loader buckets
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Recycling & Cement Plants: Hammer mill liners, crushers, transfer chutes
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Agricultural & Material Handling Equipment: Blade edges, spouts, grain elevators
Pan-India Supply Network:
We supply Hardax AR steel plates across India, including:
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Uttar Pradesh – Lucknow, Kanpur, Ghaziabad, Noida, Varanasi
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Rajasthan – Jaipur, Kota, Jodhpur, Ajmer, Bhiwadi
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Haryana – Faridabad, Gurugram, Hisar, Panipat, Ambala
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Maharashtra, Gujarat, Tamil Nadu, Chhattisgarh, Odisha, West Bengal, Telangana, and more
