- Beschreibung
Chrom -Carbid -Overlay -Platte: Differences Between Hardfaced Plates and Other Wear-Resistant Steels
Chromkarbid-Überzugsplatte (CCO-Platte) is a composite wear-resistant steel plate produced by welding a high-chromium carbide alloy layer onto a mild steel or low-alloy steel base plate. It is one of the most widely used hardfaced wear solutions in mining, Zement, Stahl, und Energiewirtschaft.
Compared with conventional wear-resistant steels such as NM400, NM500, or AR400 steel, chromium carbide overlay plate is fundamentally different in both structure and wear mechanism.
1. Structural Difference
| Materialtyp | Struktur | Hauptmerkmal |
|---|---|---|
| Chromkarbid-Überzugsplatte | Basisstahl + welded carbide overlay layer | Composite structure |
| NM400 / NM500 wear steel | Alloyed quenched & gehärteter Stahl | Homogeneous structure |
| AR400 / AR500 Stahl | Heat-treated alloy steel | Uniform hardness throughout thickness |
The most important difference is that CCO plates have a two-layer structure, while traditional wear steels are single-material plates.
2. Wear Mechanism Difference
| Materialtyp | Main Wear Resistance Mechanism |
|---|---|
| Chromkarbid-Überzugsplatte | Hard carbide particles resist abrasion |
| NM400 / NM500 steel | High hardness matrix resists wear |
| AR-Stahl | Ausgewogene Härte und Zähigkeit |
CCO plates rely on extremely hard chromium carbide particles (HRC 58–65), while wear steels rely on overall bulk hardness.
3. Härte- und Leistungsvergleich
| Eigentum | CCO-Platte | Verschleißfester Stahl (NM/AR) |
|---|---|---|
| Oberflächenhärte | HRC 58–65 | HB 400–500 |
| Verschleißfestigkeit | Excellent in sliding abrasion | Good in impact + Abrieb |
| Schlagfestigkeit | Untere (brittle surface layer) | Höhere Zähigkeit |
| Lebensdauer | Very long in abrasive conditions | Balanced in mixed conditions |
4. Processing Difference
- CCO-Platte: Requires plasma or laser cutting due to hard surface layer
- Stahl tragen: Leichter zu schneiden, biegen, und schweißen
- CCO-Platte: May have controlled surface cracks to release stress
- Stahl tragen: No surface cracking is normal
5. Application Difference
| Bewerbungsbedingung | Best Material Choice |
|---|---|
| High sliding abrasion | Chromkarbid-Überzugsplatte |
| Hohe Wirkung + Abrieb | NM400 / NM500 steel |
| Mixed working conditions | AR steel or hybrid solutions |
6. Key Advantage of Chromium Carbide Overlay Plate
- Extrem hohe Verschleißfestigkeit in abrasiven Umgebungen
- Lange Lebensdauer in chutes, Trichter, und Liner
- Replaceable wear surface concept (base plate remains intact)
- Cost efficiency in long-term maintenance
7. Teda Ganghua Wear Plate Supply Capability
Als professioneller Lieferant von verschleißfestem Stahl, Teda Ganghua provides chromium carbide overlay plates and other wear-resistant steel solutions tailored to different industrial conditions, einschließlich Bergbau, Zement, Stahl, und Energieerzeugungsindustrien.
Wir unterstützen den individuellen Zuschnitt, Herstellung, and full wear protection system design based on real operating environments.
Entdecken Sie hier unsere verschleißfesten Stahlprodukte:
Verschleißfeste Stahlplatten
Abschluss
Chromium carbide overlay plate differs from traditional wear-resistant steels because it uses a composite structure with a hard carbide overlay layer rather than a homogeneous steel body. This makes it far superior in abrasive wear conditions but less suitable for high-impact environments.
