Piastra antiabrasione
Chinese abrasion-resistant steel plates Piace NM500, Mn13, and CrC/CCO Sono highly competitive with international brands in terms of durezza, resistenza all'usura, e tenacità, while offering cost advantages and wide availability.
They are suitable for a variety of industrial applications, including mining, cemento, metallurgia, and heavy construction.
- Descrizione
Abrasion-resistant steel plates are designed to withstand extreme wear, impatto, and abrasive conditions.
They are widely used in minerario, cemento, metallurgia, and construction industries per fodere, secchi, 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
| Grado | Spessore (mm) | Durezza (HB) | Caratteristiche | Applicazioni |
|---|---|---|---|---|
| NM400 / NM450 / NM500 / NM550 / NM600 | 3–100 | HB400–600 | Balanced hardness and ductility, Buona saldabilità | Liner, screw conveyors, tramogge, crusher plates |
| Mn13 / Mn13Cr / Mn18 / Mn22 | 6–100 | HB180–220 (elevata tenacità) | High-manganese steel, excellent impact resistance | Mascelle del frantoio, secchi, ore handling equipment |
| CrC / CCO (Chrome Carbide Overlay) | 6–50 | HB600–700 | Extreme wear-resistant overlay layer | Liner, conveyor belts, attrezzature minerarie |
Caratteristiche:
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Produced under GB/T. 24186, GB/T. 13260 standard
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Available in piatti, sheets, and coils
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Può essere custom-welded, taglio, or processed
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Cost-effective with mechanical properties comparable to international brands
2. Common International Wear-Resistant Steel Grades
| Country / Marca | Grado | Durezza (HB) | Applicazioni |
|---|---|---|---|
| Svezia (Hardox) | Hardox 400 / 450 / 500 / 600 | HB400–600 | Attrezzature minerarie, corpi di autocarri con cassone ribaltabile, fodere |
| USA (Serie AR) | AR400 / AR500 | HB400–500 | Crusher, transport surfaces, parti strutturali soggette ad usura |
| Europa (XAR / RAEX) | XAR 400–500 / RAEX | HB400–500 | Sistemi di trasporto, frantoi, fodere |
| High-Manganese Steels | Mn13, Mn18 | HB180–220 | Mascelle del frantoio, secchi, 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. Tabella riepilogativa: China vs International Grades
| Proprietà | Chinese Grades | Gradi internazionali |
|---|---|---|
| Durezza | HB400–600 (Serie NM) | HB400–600 (Hardox / AR series) |
| High-Manganese | Mn13 / Mn18 / Mn22 | Mn13 / Mn18 / Mn22 |
| Overlay Steel | CrC / CCO | Hardfacing overlays (CrC, wc) |
| Costo | Inferiore, conveniente | Più alto, brand premium |
| Disponibilità | Wide, local production | Imported, limited stock |
| Saldatura & Elaborazione | Facile, flexible | Depends on grade, may require special procedures |
