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CCO Overlay – Durable Chromium Carbide Overlay Plate for Extreme Wear Resistance​

CCO Overlay – Durable Chromium Carbide Overlay Plate for Extreme Wear Resistance​

Discover high-performance CCO overlay (Chromium Carbide Overlay) plates designed for maximum abrasion and impact resistance in mining, construction, and heavy industry. Durable, cost-effective, and built to extend equipment life.
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Advantages of CCO Overlay

Unmatched wear resistance

Engineered substrates are eight times more resistant to scratching and abrasion in high-silicon environments (such as mining conveyors) than quenched steel.

Corrosion resistance in harsh environments

Resistant to acids, alkalis, and oxidizing agents—suitable for chemical processing (e.g., sulfuric acid slurry treatment).

Thermal stability under extreme temperatures

Maintains a hardness of 58+ HRC at 1,200°F (650°C) without spalling—critical for boiler tubes and kiln linings.

Impact-resistant high-strength bonding

Micro-crack structures absorb kinetic energy and prevent fractures from occurring under repeated hammering (e.g., wear-resistant plates in crushers).

CCO Overlay Steel Plate – Tough Wear-Resistant Overlay for Conveyors, Crushers & Shovels

Chromium Carbide Hardfacing Welding Wear Coal Hopper VIEW DETAILS

Chromium Carbide Hardfacing Welding Wear Coal Hopper

Chromium Carbide Hardfacing Welding Wear Distributor Chute VIEW DETAILS

Chromium Carbide Hardfacing Welding Wear Distributor Chute

Chromium Carbide Overlay (CCO) Wear Constructure Parts VIEW DETAILS

Chromium Carbide Overlay (CCO) Wear Constructure Parts

Chromium Carbide Hardfacing Welding Wear Grizzly Bar VIEW DETAILS

Chromium Carbide Hardfacing Welding Wear Grizzly Bar

Chromium Carbide Hardfacing Welding Overlay Wear Liner

Overview: 

Chromium Carbide Hardfacing Welding Overlay Wear Liner  the chemical composition of the high wear resistance alloy layer contains 4 to 5% carbon and 25 to 30% chromium. 

The volume fraction of Cr7C3 carbide in the metallographic structure reaches more than 50%, and the macro hardness is HRC58 to 63. 

The hardness of chromium carbide is HV1400 ~ 1800, which is higher than the hardness of quartz in sandstone HV800 ~ 1200. 

Since carbides are distributed vertically in the direction of wear, even when compared with casting alloys of the same composition and hardness, the wear resistance is more than doubled.

FAQ

MOQ?

Our product has no limit to quantity, it can be ordered according to customer requirement.
Yes, Chromium Carbide Overlay parts can be customized to meet specific design requirements and dimensions for different applications.
Due to the cooling rates of dissimilar metals. Our hard facing plate for coal chute liner is manufactured by welding which results in high temperatures. During the cooling, the plate goes through a stress relieving which is a natural process and does not effect the performance of the plate. The stress relief cracks should be between 3/4" - 2" apart. The cracks can be touched up by our chrome carbide welding rod.
Chromium Carbide Overlay is typically applied using a welding process, where a layer of chromium carbide is fused to the base material to create a wear-resistant surface.

Our Latest News Display

How to Choose the Right Thickness and Hardness in a CCO Plate

21

Jul

How to Choose the Right Thickness and Hardness in a CCO Plate

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Top 5 Applications of CCO Plates in Mining, Cement, and Steel Industries

21

Jul

Top 5 Applications of CCO Plates in Mining, Cement, and Steel Industries

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The Role of Chromium and Carbon in Hardfacing Wire Alloys

21

Jul

The Role of Chromium and Carbon in Hardfacing Wire Alloys

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Common Mistakes When Installing CCO Plates—and How to Avoid Them

23

Jul

Common Mistakes When Installing CCO Plates—and How to Avoid Them

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What Our Clients Are Saying

Sarah Chen
Sarah Chen

The weldability of these plates is a game-changer. Our team cuts and shapes them easily without losing durability, saving us downtime.

Carlos Gomez
Carlos Gomez

We’ve been using CCO plates for our excavator buckets, and they last 3x longer than regular steel. No more frequent replacements—huge cost savings!

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Why Choose Us

Why Choose Us

Hard-plate® is an high-tech enterprise specializing in metal matrix hard-face wear resistant steel plate and wear resistant material manufacture. Relying on domestic famous institute, Hard-plate® researches and develops wear resistant material and hardfacing welding machine independently, passed the ISO quality mangement system, have dozens of own technologies, got rewarded as high-tech enterprise in 2007 and gained national innovation funds in 2010. Now, Hard-plate® has become domestic famous enterprise.

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