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High Chromium Carbide Overlay Plate

High chromium carbide overlay plate is a wear-resistant steel plate produced by depositing a high-hardness chromium carbide alloy layer onto a mild

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High Chromium Carbide Overlay Plate

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Hardfacing Wear-resistant Plate

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Product Details

High Chromium Carbide Overlay Plate: Common Overlay Layer Specifications

High chromium carbide overlay plate is a wear-resistant steel plate produced by depositing a high-hardness chromium carbide alloy layer onto a mild steel or low-alloy steel substrate through welding. This type of plate is widely used in mining, cement, steel plants, power generation, and bulk material handling industries.

The core performance of carbide overlay plate depends largely on the overlay layer thickness, number of overlay layers, and total plate structure. Different overlay specifications are designed for different wear conditions.

1. What Is Overlay Layer in Chromium Carbide Plate?

The overlay layer is the wear-resistant welding layer containing hard chromium carbide particles. It provides extremely high abrasion resistance against sliding wear and impact abrasion.

Layer	Function
Overlay layer	Main wear-resistant working surface
Base plate	Provides structural support and weldability

2. Common Overlay Layer Specifications

Chromium carbide overlay plates are usually described by base plate thickness + overlay thickness.

Specification	Total Thickness	Typical Application
6+4 mm	10 mm	Light wear conditions
6+6 mm	12 mm	Medium abrasion environments
8+4 mm	12 mm	Impact + wear conditions
8+6 mm	14 mm	Heavy-duty wear systems
10+6 mm	16 mm	Mining and cement equipment
12+8 mm	20 mm	Extreme abrasion applications

3. Common Overlay Layer Thickness Range

Overlay Thickness	Wear Resistance Level
3–4 mm	Standard wear protection
5–6 mm	High wear resistance
7–8 mm	Heavy-duty abrasion resistance
10 mm+	Extreme wear service

4. Single Layer vs Multi-Layer Overlay

Type	Characteristics	Application
Single-layer overlay	Economical and efficient	General abrasion environments
Double-layer overlay	Higher carbide density and hardness	Heavy wear conditions
Multi-layer overlay	Maximum wear life	Extreme mining and cement applications

5. Typical Hardness and Performance

Overlay hardness: HRC 58–65
Carbide content: High chromium carbide microstructure
Wear resistance: 5–8 times better than ordinary steel
Service life: Significantly improved in abrasive environments

6. Common Applications

Industry	Equipment
Mining	Chutes, hoppers, crushers, liners
Cement plants	Fans, ducts, chutes, cyclones
Steel plants	Material transfer systems
Power plants	Coal handling systems

7. Teda Ganghua Overlay Plate Supply Capability

As a professional wear-resistant steel supplier, Teda Ganghua provides high chromium carbide overlay plates in multiple base plate and overlay layer combinations to meet different wear conditions. Our overlay plates offer stable hardness, high carbide density, and excellent wear performance for severe industrial environments.

We support customized cutting, welding fabrication, and wear liner solutions for mining, cement, steel, and power industries.

Explore our wear-resistant steel products here: Wear Resistant Steel Plates

Conclusion

The overlay layer specification is one of the most important factors in determining the performance of high chromium carbide overlay plate. Common specifications range from 6+4 mm to 12+8 mm, with different overlay thicknesses designed for light to extreme wear applications.

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