Abrasion Plate
Chinese abrasion-resistant steel plates like NM500, Mn13, and CrC/CCO are highly competitive with international brands in terms of hardness, wear resistance, and toughness, while offering cost advantages and wide availability.
They are suitable for a variety of industrial applications, including mining, cement, metallurgy, and heavy construction.
- Description
Abrasion-resistant steel plates are designed to withstand extreme wear, impact, and abrasive conditions.
They are widely used in mining, cement, metallurgy, and construction industries for liners, buckets, screw conveyors, and crusher parts.
China produces several widely used wear-resistant steel grades that are comparable to international standards, often at a more cost-effective price.
1. Common Chinese Wear-Resistant Steel Grades
| Grade | Thickness (mm) | Hardness (HB) | Characteristics | Applications |
|---|---|---|---|---|
| NM400 / NM450 / NM500 / NM550 / NM600 | 3–100 | HB400–600 | Balanced hardness and ductility, good weldability | Liners, screw conveyors, hoppers, crusher plates |
| Mn13 / Mn13Cr / Mn18 / Mn22 | 6–100 | HB180–220 (high toughness) | High-manganese steel, excellent impact resistance | Crusher jaws, buckets, ore handling equipment |
| CrC / CCO (Chrome Carbide Overlay) | 6–50 | HB600–700 | Extreme wear-resistant overlay layer | Liners, conveyor belts, mining equipment |
Features:
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Produced under GB/T 24186, GB/T 13260 standards
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Available in plates, sheets, and coils
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Can be custom-welded, cut, or processed
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Cost-effective with mechanical properties comparable to international brands
2. Common International Wear-Resistant Steel Grades
| Country / Brand | Grade | Hardness (HB) | Applications |
|---|---|---|---|
| Sweden (Hardox) | Hardox 400 / 450 / 500 / 600 | HB400–600 | Mining equipment, dump truck bodies, liners |
| USA (AR Series) | AR400 / AR500 | HB400–500 | Crushers, transport surfaces, structural wear parts |
| Europe (XAR / RAEX) | XAR 400–500 / RAEX | HB400–500 | Conveyor systems, crushers, liners |
| High-Manganese Steels | Mn13, Mn18 | HB180–220 | Crusher jaws, buckets, high-impact areas |
Key Comparisons:
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Chinese NM grades match Hardox / AR grades in hardness and ductility for most industrial applications.
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High-manganese steels in China are comparable to Mn steels worldwide, offering excellent impact resistance.
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Overlay steels like CrC/CCO provide similar or superior abrasion resistance compared to European and US bimetallic overlay plates at a lower price.
3. Summary Table: China vs International Grades
| Property | Chinese Grades | International Grades |
|---|---|---|
| Hardness | HB400–600 (NM series) | HB400–600 (Hardox / AR series) |
| High-Manganese | Mn13 / Mn18 / Mn22 | Mn13 / Mn18 / Mn22 |
| Overlay Steel | CrC / CCO | Hardfacing overlays (CrC, WC) |
| Cost | Lower, cost-effective | Higher, brand premium |
| Availability | Wide, local production | Imported, limited stock |
| Welding & Processing | Easy, flexible | Depends on grade, may require special procedures |
