Buying Guide for Chromium Carbide Overlay (CCO) Wear Plate

Chromium carbide overlay plate is one, if not the most popular and the most sought after wear plate in the industry. Because of their wide availability, their efficiency, and their effectiveness, it’s easy to see why they’re the best. And while you may think it’s easy to choose from countless chromium carbide overlay plate suppliers, it’s actually the hardest and the most challenging part. A Chromium Carbide Overlay (cco) Wear Plate Manufactured And Processed By Waldun A chromium carbide overlay (CCO) overlay plate manufactured and processed by WALDUN Today, we’ll be giving you a guide on how to purchase chromium carbide overlay plates. In fact, by the end of this guide, you’ll know everything you need to look for before deciding which manufacturer to work with! Not only that, you will also know how you can buy the best and the highest quality of CCO wear plates without ever spending a fortune!

Understanding Chromium Carbide Overlay Wear Plates

In discussing chromium carbide overlay wear plates, it isn’t just limited to one kind. Sample Of Waldun’s Regular Cco Wear Plates – We Also Have Smooth Cco Plates

This is a sample of WALDUN’s regular CCO wear plates – we also have smooth CCO plates, etc. As a matter of fact, you can find many different kinds and variations of CCO wear plates in terms of pattern, type, procedure made, and the like. In this buying guide, we will help you find the best CCO wear plates in the market. We’ll dissect everything from the chromium carbide wear plate manufacturer, the type of material used – to the finishing procedure.

How Chromium Carbide Overlay Wear Plates are Made

In the simplest and the easiest terms, here’s a quick peek of how chromium carbide wear plates are manufactured: Plasma Cutting  Plasma cutting is done to produce the required shape/dimensions of the wear plate

  1. The steel plates are sourced out and are run through rotating tubes. They’re bended for them to drum.
  2. If the client requires a large-sized CCO wear plate, then smaller steel plates would be welded together to make up a large part.
  3. Then, using welding, the plate is cladded by the material – in this case, chromium carbide at the surface.
  4. Depending on the size of the steel plate would be the number of the welding heads running simultaneously.
  5. After cladding, plasma cutting and other cutting procedures are done to produce required shapes and dimensions of the CCO wear plates.
  6. Then, depending on the manufacturer, the final product is heat treated to a temperature it can resist. This treatment is done to harden the wear plate further.

That’s the general procedure on how a CCO wear plate is produced and manufactured. Other manufacturers might have other methods and processes; that’ll depend on the manufacturer already.

Purpose of Chromium Carbide Overlay Plates

Chromium carbide overlay wear plates are used by a lot of industries because of the promising results they’re guaranteeing. Wear Plate Installed  An example of what would happen if there’s no wear plate installed or integrated As a matter of fact, chromium carbide overlay plates are perfect for situations and environments that have high abrasion, high corrosion, and high friction. You can use CCO plates for:

  • Prolonging the life or the effectiveness of machines and equipment
  • Restoring or rehabilitating the dimensions and the shape of parts and components
  • Decreasing and overall removing the risk of the parts wearing out
  • Controlling the abrasion-level of each of the machine or the equipment’s part or component
  • Helping the overall effectiveness and efficiency of the part/component

Those are the main and primary purposes of chromium carbide overlay wear plates. All of these are applicable to many different industries and sectors; it’ll just depend which one you are in.

Having More Layers – Are They Better?

When dealing with CCO wear plates, the wide majority of people think that the more layers a particular wear plate has, the better. Multi Layered Chromium Carbide Wear Plate  A multi-layered chromium carbide wear plate for strength and durability purposes Since their main purpose is to absorb friction and abrasion, not letting it reach the part itself, you’d think the same, right? However, that is not true. Having more does not always translate to good or better. Even if there’s just one pass or one layer of chromium carbide wear plate, if it has been welded properly and appropriately, and if the chemistry of the elements and compounds are compatible with one another, it’ll be better than a normal and a regular CCO wear plate that has a double pass.

Industries That Use Chromium Carbide Overlay Plates

Many industries and business areas feel the need to use chromium carbide overlay wear plates. The Pulp And Paper Industry  The Pulp and Paper industry – one of the industries that use CCO wear plates The most common industries that are vocal about their need to use CCO wear plates include the construction or the structural industry, and the heavy earth moving industry. To cite other industries that need it, they are:

Gas and Oil Industry

The gas & oil industry use wear plates for many different parts and components, including valves, boilers, heat exchangers, compressors, chutes, conveyors, and many more.

Pulp and Paper Industry

For the pulp and paper industry, wear plates are regularly applied and integrated to refiners, pulpers, chippers, cyclone fans, mixing machines, pipelines, etc.

Mining or Coal Mining Industry

With the mining and/or coal mining industry exposed to frequent abrasion and friction, the use of wear plates has been seen as a standard in many different situations. As a matter of fact, the most common machines/equipment that are installed CCO wear plates on include dumpers, bulldozers, graders, excavators, rotary blades, loaders, and many more! Apart from those industries, there are other industries that rely on chromium carbide overlay wear plates for the life and the prolonging of their parts/machines.

Does Paint on Wear Plate Really Matter?

The quick and easy answer to that is no – wear plates, especially chromium carbide overlay plates wouldn’t have too much of a difference if it has solid paint or not – or if the paint is cranked and mixed up. This probably is the most common misconception that experienced and seasoned workers have when choosing CCO wear plates. Color shall never be a side of judgment in choosing which CCO plates to buy. As a matter of fact, you might even see hairline cracks, check-cracks, and other thin lines on the CCO plate when you first purchase it. To be fair, they’re completely normal! Seeing a thin-line crack isn’t a sign that the CCO plate has been damaged or worn-out; it is, in fact, a natural stress relieving effect that the plates have.

How to Choose the Chromium Carbide Overlay (CCO) Wear Plate to Buy

There are a couple of things you should look for before you purchase chromium carbide overlay wear plate. Chromium Carbide Wear Plates Stacked  WALDUN’s chromium carbide wear plates stacked and lined with one another As mentioned above, the thickness or the number of passes isn’t significant enough if the chemistry is not thought of fully. That being said, here are the best tips so you’ll be able to purchase the best and the highest quality of CCO wear plates.

Bigger Plates are Always Better

While pass thickness isn’t much of a big deal, the larger the size of the CCO plate, the better. Imagine a wear plate that’s smaller than the bucket you’re trying to cover. Also, if you are going to install it on a loader or an excavator, would a small one fit it? Probably not! There are manufacturers that produce large-sizes chromium carbide overlay wear plates, while those that just weld two (2) or more small pieces together. You need to make sure that you’re purchasing large and wide-sized CCO wear plates for better results. So, checking on the history, the background, and the overall capability of the manufacturer is important. We’ll get to that in a later part of this guide.

Ask For Samples

Most, if not all CCO wear plate manufacturers offer free samples to clients and businesses. These samples are ways to check if the product or the CCO wear plate is fit to the need of the client. Should they provide a sample, you can do and perform tests and assessments to that particular sample. But, there are a few chromium carbide wear plate suppliers that do not offer samples; it’ll be better to work with a manufacturer that provides free samples.

The Hardness Level Isn’t Always Important

Different chromium carbide overlay wear plates have different hardness levels. The hardness would depend on a wide range of factors, such as the heat treatment, the material used, and many more. On average, the hardness levels of chromium carbide overlay or CCO wear plates are usually around 59 to 64 HRC. But, the harder the wear plate is, the more brittle and fragile they are. High-level hardness CCO wear plates are prone to cracking, breaking, and splitting.

How is Hardness Measured?

To add extra information and knowledge to this, here’s how hardness is measured. Measuring the hardness of a particular item can be done in many different ways. However, the most common ones are the Brinell and the Rockwell scale. Typically, measuring the hardness of CCO wear plates is done via the Rockwell (HRC) or the Hardness Rockwell C. 59 HRC, when converted to Brinell, is 590 HB. 64 HRC, on the other hand, is measured ad 668 HB. The higher the number, the harder the particular item or CCO wear plate is. So, it might seem typical to see the regular or the average hardness level of chromium carbide overlay wear plate is at 59 to 64 HRC. However, different manufacturers, use different materials and products to produce and to manufacture CCO wear plates – they’re not all the same. There are manufacturers that produce malleable CCO wear plates, while there are those that manufacture CCO wear plates that have HRC levels over 72.

The overlay plate has surfacing layers. How about flatness?

Based on industrial standard, the flatness of the overlying plate shall be control within ±3mm/m. so you may ask how to make sure of the wear plate flatness.

Then how to test the exact flatness of chromium carbide plate?First of all, the steel plate should place on the flat ground. It is simple to use a steel ruler with the ruler standing on the steel plate. Measure the maximum distance between the lower end of the ruler and the steel plate, corresponding to the shape of the steel plate.Second, there are special tools for higher accuracy. Measuring straightness by using a very rigid rectangular section ruler with a measuring scale similar to a depth gauge.Third, a laser shaper for automatic measurement is a more advanced test method.

All three principles are the same, but that the speed and accuracy are different. You can check overlay plates by your tools at hand.
CCO Overlaying Manufacturing

Can CCO plates have welding cracks?

Answer is yes. overlay plates, welding cracks shall be evenly spaced, and the cracks shall be fine.

The production process of a wear-resistant composite plate is made by metallurgical surfacing, either open arc welding or submerged arc welding. Welding current is generally 500 ~ 700A, and the temperature of the welding arc reaches 6000 ~ 7000 ℃.

The instantaneous high heat causes the welding wire and the base plate to reach the melting point to form a molten pool (so-called bead), and the alloy powder added to the molten pool is melted to form a surfacing layer.

In the cooling process after thermal deformation, to release the welding stress existing in the surfacing composite steel plate, many cracks of different sizes will be generated in the direction of the surfacing layer perpendicular to the bead.

This crack is the result of stress release. Therefore, if there are no cracks or few cracks on the surface of the overlay plate, it is an unqualified product! These cracks seem to be very easy to worry about. They are afraid that the wear-resistant composite steel plate will spread into the base plate during use, and even they are scared of breaking or falling off. This worry about cracks is unnecessary.

Production belongs to metallurgical combination and has excellent bonding performance. The blow does not fall off or break during use. As long as the crack intervals are uniform and the cracks are small, there is no problem.

Wear Plate Image

How to test and make sure of the surfacing layer size?

It is best to use UT for testing. UT thickness measurement is possible. The echo from the interface between the two materials is visible due to the slight velocity difference between carbon steel and stainless steel cladding. However, repetition is minimal. Do not use a thickness gauge with a digital display. UT instrument with A-Scan presentation is necessary.

If UT is not available, can measure after grinding, the surfacing layer shall be visible, flat and no unevenness, and the average thickness is measured at multiple points

wear plates

How to judge an overlay plate with surface painting?

We all know the saying, “don’t judge a book by its paint.” Ironically the same goes for CCO plate. One area of concern is the cracks that appear. The surface of the plate will exhibit numerous hairline cracks, which are a natural stress-relieving phenomenon that is essential to the performance of the plate. It enabled the plate to be formed, bent, and rolled without damage. These operations are maybe necessary for your replacement parts.

Sometimes plates are entirely painted. It may make the plate appear aesthetically pleasing, but this is a tactic to cover imperfections or inconsistencies in the welds. Proceed with caution when dealing with companies that provide fully painted plates. The exception would be when the customer specifications require this step.


Can overlay plates have welding defects?

The quality defects of the wear overlay welding are common. When the relevant technical personnel inspects the welds of the chromium carbide overlay plate, they should find the defects early and limit the welding defects to a specific range to ensure the safety, economy, and stability of the unit. Run. The following is an analysis of these defects.


The most common occurrence of chromium carbide plates during welding is hydrogen pores, which are divided into internal pores, surface pores, and joint pores. The leading causes of pores are: the edge of the bevel is not clean, there are moisture, oil stains and rust, the electrode or flux has not been baked according to regulations, the core is destroyed, or the coating has deteriorated or peeled off. Due to the existence of pores, the useful cross-section of the weld is reduced. Excessive pores will reduce the strength of the weld and damage the compactness of the weld metal.


The depression left at the edge of the weld is called an undercut. The cause of undercut is due to excessive welding current, fast bar speed, too long arc, or improper angle of the electrode (wire). Undercuts reduce the working section of the base metal joint, which causes stress concentration at the undercuts, scattered in important structures or dynamic load structures. Undercuts are generally not allowed, or the depth of undercuts is limited.


Slag inclusion is the slag remaining in the weld. Slag inclusion also reduces the strength and compactness of the weld. The leading causes of slag inclusion are a. Residual slag left by aerobic cutting or carbon arc gouging at the edge of the weld; b. Bevel angle or welding current is too small or welding speed is too fast; c. “Dross” is formed because the flow is too low, or the rod is improperly moved. D. When alkaline electrodes are used, the slag will be caused by the arc is too long or the polarity is incorrect.

Not welded or fused

When welding the chromium carbide plates, the root of the joint is not completely melted. It is called non-penetration; there is local non-penetration in the weldment and weld metal or weld layer. It is called the unfused. Therefore, no essential structural parts are allowed to be incompletely welded or unfused.

Ball mill liner

How about overlay plate cutting edges?

Cutting edges shall be all around: linear, no burrs; it is best to use a large plasma cutter.

A precision cut surface has the following characteristics:

Square face (less than 3-degree bevel)

Smooth, with nearly vertical draglines

Little to no nitrides or oxides

Little to no dross, and what dross is present should be easy to remove

Minimal heat-affected zone and recast layer

Materials of overlay plate

How about the total thickness of the wear plate?

The answer for this question is the thickness shall be controlled within the allowable range, ± 0.5㎜;

How about the hardness of overlay plates?

Hardness shall be within the required range.

Due to the problem of the oxide layer and surface flatness on the surface of the wear-resistant steel plate, when testing the wear-resistant plate, it is best to mill off 1.0-2.5mm on the surface of the steel plate, and then perform hardness inspection on this surface. Generally, we recommend that you mill off 2.0mm for hardness inspection. The testing tool is preferably a desktop hardness tester (the data monitored by the portable hardness tester can only be used as a reference).

The general hardness is HRC55-62;

What is a suitable alloy composition?

If possible, measure and check alloy composition.

Not all applications are the same; it sounds like a simple thought. If requests are different, then shouldn’t the solution need to be changed? Consider looking for a company that offers multiple chemistries. If you have an extreme abrasion application, then you need a CCO plate that is tailored to meet the harsher abrasion and wear. For abrasion challenges that include impact elements, you need a solution that can handle the beating and not destroy the plate. Look for a company that can work with your needs, provides you a solution that addresses your specific application.

How about allowable metallographic?

If possible, do metallographic analysis. The volume fraction of Cr7C3 carbides in the metallurgical structure can reach more than 50%.

In the extension of chemistry, the most significant characteristic of the alloy overlay is its microstructure. Hence, when checked out under a microscope, the carbides will take the form of white substance against a dark background, that that’s the matrix.

A perfect microstructure, for more excellent abrasion resistance, must have a dense array of needle-like carbides that, in cross-segment, look as slender hexagons with a small hole in the middle.

Moreover, whenever you notice an appearance of uneven shaped spots or avenues of white. Such as either ladder, fish-bone patterns, or central poles with rungs on any of the sides. This is a sure sign that the carbon content is beneath optimum for high abrasion resistance, but it has also improved impact-resistant properties.

Other Factors You Need to Consider

In choosing the CCO wear plate, you don’t just have to focus on the hardness. There are other properties you can choose from as well. Hardness Wear Plate  Apart from hardness, you also need to consider other factors and properties

Service Temperature

This property measures the capacity of the CCO wear plate to be worked on under temperatures. If we put it in average, the maximum service temperature of these plates is at 600 to 650 degrees Celsius or 1,100 to 1,200.


When it comes to the impact, this is the capability of a CCO wear plate to be able to resist and absorb impact.


The amount of abrasion resistance of a particular chromium carbide overlay plate depends on the composition of it. Abrasion refers to the wearing out of the surface such as scratching, rubbing, and marring.

Service Life/Life Expectancy

Lastly, the service life or the lifespan of the CCO wear plate is relevant and significant as well. Although the life expectancy would still depend on usage, as well as other external influences, manufacturers give the expected service life of their CCO wear plates for clients to have a general threshold of until when they’re effective.

Look Into the Manufacturer/Supplier’s Capability

While these things are a lot to digest, the best thing to do is to still look into the legitimacy and the experience of the manufacturer you’ll be working with. The quality and the overall effectiveness of chromium carbide wear plates will, of course, depend on the one who made it. If the chromium carbide wear plate manufacturer isn’t reputable or if they’re known to provide CCO wear plates that are not-up-to-standard, then you should already think twice about working with them.   To illustrate further, there are newer manufacturers of wear plates that skip heat treatment because they think it’s not a collaborative factor in the strength and quality of the material. These manufacturers are obviously inexperienced and are not used to other procedures in which wear plates are used for. To successfully check the background or the history of a manufacturer, you can try the following:

Check Reviews

While the reviews you see online aren’t much impacting, the reviews that real clients they had could be everything you need to decide. If you see a line of reviews that is 100% positive – then, the chances of that manufacturer being world-class is higher, you can immediately come up with a conclusion that they’re easy-to-work-with.

Speak to Previous Clients

Another thing you can do is to find previous clients of that particular manufacturer. Try communicating with those clients and ask about the service and the products the manufacturer is offering. Were they up to the expectations of the client? Or were there a lot of challenges towards completion?

Check Their Manufacturing Plant/Office

Lastly, the condition or the ambience of the manufacturing plant reflects directly on the quality of service the manufacturer has. Hardfacing Welding Wire Line  The plant or workspace reflects the quality of products and services Since the rise of technology, many suppliers opened a virtual setting of their manufacturing plants and offices. This paved way for clients to be able to “visit” their factories without being physically there. Oftentimes, the best manufacturers would offer a virtual tour of their factory. They wouldn’t be shy to let their factories and their manufacturing processes out.

Which Manufacturer Should You Trust?

It has been a long debate in terms of which manufacturer you should work with. Some businesses and companies say that choosing a Western manufacturer is better (those in Europe and in North America), while some say that you’ll be able to get the best products in China. The latter, probably, is the closest because of a lot of different factors:

  • Cheap, inexpensive, and affordable goods
  • High quality of products (ODM and OEM)
  • Many variants and variations of the orders and the products you need
  • A lot of manufacturers to choose from (tight competition, better quality)
  • And many more

But out the hundreds of chromium carbide wear plate manufacturers in China, which one should you trust and work with? For more than a decade, we here at WALDUN have been crowned as the best, the most trusted, and the most reliable CCO wear plate manufacturer. The quality and the overall finesse that we have in CCO wear plate manufacturing has been key to our journey atop the industry’s ladder. WALDUN’s processes have been deemed and considered as the most significant – because it’s foolproof and other manufacturers have imitated it.

Business Advantages of Working With WALDUN  

Apart from the experience, the skill, and the overall adeptness that our engineers and experts have, we’re also a company prepared to give you everything you need and everything you want to know about. If you yearn to learn more about chromium carbide wear plates, we got you. If you’re interested in innovating with us, our Research & Development (R&D) Team is prepared to help! Being ISO, ASTM, and SGS certified – you can trust us with everything from product sourcing, customization, down to logistics and shipping! Get the best and the highest quality of chromium carbide wear plates from WALDUN at the most affordable and the most competitive prices!

Get a Free Quote!

Want to get a free estimate of the products you need? You just have to fill out some information below and we’ll send you one! Never overpay for CCO wear plates again!

Chromium Carbide Overlay Plate– The Ultimate FAQ Guide

Many firms in the manufacturing industry aren’t knowledgeable about what Chromium carbide overlay wear plate is.

Little did they know that this product item would be every little thing they require for the enhancement of their parts. For instance, you’re likewise not precisely sure what it is, don’t stress; this overview is ideal for you.

It will undoubtedly be the best, one of the most in-depth and the most comprehensive guide about the Chromium carbide plate! We’ll thoroughly discuss what Chromium carbide overlay plates are, exactly how you can utilize them, actually whatever about it!

What is a Chromium carbide overlay plate?

Chromium carbide overlay plates are made for wear and also abrasion.

Chromium Carbide Plate Sample

We can specify a Chromium carbide overlay plate as a rugged dressed plate that contains homes and substances that have high resistance to abrasion, temperature level, and stress and anxiety.

You may not know it. However, it’s used by many different services.

What Uses Can Chromium Carbide Overlay Plate Have For You or Your Company?

The primary use of a Chromium carbide overlay plate is to provide durable support to components and also elements. Since it’s extra complicated and even incredibly immune to put on, you can utilize it to:

Corrosion Resistant

– Boost the life of your makers and also devices

– Protect against additional wear of a particular part or element

– Include toughness as well as resistance to your products

Preferably, you’ll make use of Chromium carbide plates because of the strength properties as well as resistance they have.

Which Industries Usage Chromium Carbide Overlay Put On Plates?

Consider all the industries that undergo friction, stress, and influence; all of those would need chromium carbide to put on resistant plates.

Chromium Carbide Plate Ingredients

To provide you a more concrete answer, right here are the most common sectors that utilize Chromium carbide plate:

  1. Iron and Steel Industries
  2. Coal Processing and also Mining Industries
  3. Concrete and even Building Industries
  4. Power & Generation Industries
  5. Fabrication Industry
  6. As well as A lot more!

These are all markets that typically engage in activities that have significant influences as well as temperature levels. Yet, using Chromium carbide plates aren’t just restricted to these!

How Tough are Chromium Carbide Overlay Plates?

The firmness of Chromium carbide overlay plates depends typically upon the producer and the procedure on how it’s done.

Chromium Carbide Overlay Plates

The typical hardness that it has is around 700 and 850 in the Brinell Firmness Range. Additionally, it’s between 58 and 62 HRC.

How Are Chromium carbide overlay plates Made as well as Produced?

A Chromium carbide overlay plate is produced and created via the deposition of materials on light steel.

Abrasion Resistant

The materials that would undoubtedly be deposited are abrasion resistant, abundant in chromium sort of parts.

With this process, a Chromium carbide overlay plate is produced and also produced. After it, specific functions adhere to allowing it to be gotten application to a mom’s and dad’s steel or a workpiece.

Are Chromium carbide overlay plates Put On and also Abrasion Resistant?

Yes, Chromium carbide overlay plates are wear and abrasion immune.

Mineral Wear Plates

This is their primary purpose– to offer the resistance that a specific part or element needs.

What Advantages Can Chromium Carbide Overlay Plate Provide You?

How to express the wear resistance of the chromium carbide wear plate

Applying for a Chromium carbide overlay plate on your parts and materials can provide you a ton of benefits. Some of that include:

  • Higher Resistance to Use and also abrasion

Chromium carbide overlay plates create a part and improve or a material’s resistance to abrasion and wear. Their structure is excellent for the toughness and also durability of products.

Moderate to High Degree of Influence Resistance

As a result of its metallic buildings, it’s also perfect for moderate to high resistance levels. It can absorb shock in various high degrees.

  • Cost-Effectiveness

Think of any building product without a Chromium carbide plate coated to it; you would certainly have to buy repairs or tools.

With a Chromium carbide plate, you can safeguard its surface, heightening the total resilience, durability, and toughness that it has.

CCO plates are all made and used for the advantage and the strength of your machines or equipment. You can depend on it to lengthen the lives as well as enhances its resistance to wear.

Are Chromium Carbide Plates Abrasion Resistant?

Chromium carbide plates are also abrasion resistant.

You can use them in many different, high stress and high temperature situations.

What is a Tungsten Carbide Plate?

A tungsten carbide plate is a type of steel material.

You can use it to make high-temperature resistant parts of a machine.

Where Can You Use Tungsten Carbide Plates?

You can use tungsten carbide plates for a wide range of reasons such as:

  • Making wear resistant parts
  • Enhancing cutting tools
  • Enhancing abrasives
  • And many more

Because of its hardness, it’s most known use is to improve industrial and manufacturing machinery.

What are Hardox Plates?

A Hardox plate is a sheet of steel that is wear resistant. It has a usual nominal hardness of 450.

It’s manufactured by SSAB, a Swedish company.

Chromium Carbide Plates vs. Hardox Plates

A chromium carbide plate is a type of clad plate made from high carbon and chrome. Therefore, its hardness can reach up to 600 BHN.

Hardox plates are plates made from Sweden. It is also wear and abrasion resistant but more flexible than chromium carbide plates.

They’re used differently because the latter is more used for bending and folding.

Unlike chromium carbide plates, Hardox plates might not be effective in high temperature uses.

Is AR500 the Same as Chromium Carbide Plates?

No, AR500 is not the same as chromium carbide plates.

AR500 is a type of hardened abrasion resistant steel. You can actually use it for mining equipment, trucks and truck parts, plows, and the like.

A chromium carbide plate is a different type of hard clad plate. You can use it in high stress and high temperature operations.

How Do You Weld Chromium Carbide Plates?

Welding chromium carbide plates is close to how the usual welding process is.

  1. Preheat the base metal to where you would weld the chromium carbide plates
  2. Position the chromium carbide plates onto the steel or metal base
  3. Use carbon steel electrodes to weld the chromium carbide plate to the machine or equipment
  4. Make sure to choose the best type of filler material for the weld

What is Weld Overlay?

weld overlay is a process of depositing or welding metals to particular surfaces or parts.

What is Weld Overlay_The main goal is to improve and enhance the characteristics and properties of the base metal.

How is Overlay Plate Made?

Overlay plates are made via the process of multi-pass open arc welding.

Overlay Plate Made_More often than not, Chromium Carbide Alloy is the material deposited to the steel, making it a clad plate.

What is Weld Overlay Process?

You can easily distinguish a weld overlay process because it will involve different metals.

Weld Overlay ProcessThe process is simple – two or more metals are used and combined together, being welded to the base metal layer’s surface.

What are the Different Weld Overlay Plate Processes?

Weld overlay can be done through a myriad of different techniques.

Different Weld Overlay ProcessesHowever, the most common ones include:

  • Submerged Arc Welding (SMAW)
  • Gas Metal Arc Welding (GMAW) (Gas-Shielded and Open Arc Welding)
  • Shielded Metal Arc Welding (SMAW)
  • Thermal Spraying
  • Plasma Transferred Arc Welding (PTAW)

These are among the most effective for the welding overlay process.

What is the Usual Hardness of Chromium Carbide Overlay Plate?

Different overlay plates have varying hardness. Some are hard but brittle; while some are soft but flexible enough not to be broken.

However, a Chromium Carbide Overlay (CCO) plate has a hardness of about 700 to 850 BHN.

What is Smooth Overlay Wear Plate?

While regular overlay plates are distinctive with their wide and smooth beads, they’re quite different.

Smooth Overlay PlateSmooth overlay plates are regular clads that have a smoother exterior than what is expected of the product.

Nevertheless, they still contain the same properties and characteristics. The difference is only with the exterior.

What are the Benefits of Smooth Overlay Plates?

Using smooth overlay plates can actually give you more benefits than you can imagine.

In fact, here are the top pros that you can have for smooth overlay or CCO plates:

  1. Little-to-no weld beads in the final product
  2. No friction because of the smoothness of the surface
  3. Can last longer and more effectively than regular wear plates
  4. More cost-efficient and can be a one-time solution for high-friction activities

Which Industries Can Benefif from Using Chromium Carbide Plates?

Many industries can find benefit from utilizing overlay plates.

Industries Benefit From Overlay PlatesHowever, some industries that can find the most use for it include:

  • Chemical Industry
  • Manufacturing and Milling Industry
  • Construction Industry
  • Industrial Industry
  • Aviation Industry
  • Gas & Oil Industry

Is Wear Plate and Overlay Plate the Same?

Ideally, they are the same type of product with the same goal. They’re both used for protection and for development of the base or the parent metal.

Wear Plate and Overlay PlateYou can think of it like this:

Wear plates are the general type of protection for parts and components.

Overlay plates, on the other hand, are extra hard plates with better resistance properties.

Clad Plate VS Overlay Plate

Although they have different uses and goals, their overall effectiveness is compared frequently.

Clad PlateClad plates are used to improve a material’s resistance to abrasion, corrosion, etc. It’s usually done when a product is new or if it’s just been slightly used.

Clad materials are best used in machinery and equipment to perform better; to have less damage.

Overlay plates, on the other hand, have different purposes. They can be to restore the shape and dimensions of a part or a component, to prevent further wear, and so on.

Overlay plates are used for purposes to lengthen its life by deterring wear and damage; as well as to protect the surface from being cracked, scratched, and be consumed by abrasion.

What is Stomata in Welding?

Stomata is one of the many welding defects.

StomataYou can accidentally form Stomata when bubbles can’t escape during the solidification process.

It’s the result of having insufficient flux coverage, or by having a large slag viscosity.

What is a Manganese Plate?

It’s a wear plate made from materials that are austenitic as well as non-magnetic.

Manganese Plates

It sits merely listed below the firmness degree of Chromium carbide plate at about 450 to 500 BHN.

Chromium Carbide Overlay Plate Price and Rate

Rates of the Chromium carbide plate would rely on the maker. A lot more often than not, suppliers do not just show the costs online.

What is a CCO Plate?

Short for Chromium Carbide Overlay plate, CCO plates are made for wear and abrasion.

CCO Plates

We can define a CCO plate as a hard clad plate that contains properties and substances that have high resistance to abrasion, temperature, and stress.

You might not know it, but it’s actually used by many different businesses.

What Uses Can CCO Plate Have For You or Your Business?

The main use of a CCO plate is to provide long-lasting support to parts and components. Since it’s extra hard and highly resistant to wear, you can use it to:

Uses Can CCO Plates Have

  • Improve the life of your machines and equipment
  • Prevent further wear of a certain part or component
  • Add strength and resistance to your materials

Ideally, you’ll use CCO plates because of the strength properties and resistance they have.

Which Industries Use CCO Wear Plates?

Think of all the industries that undergo stress, impact, and friction; all of those would need CCO wear resistant plates.

Industries Use CCO Wear Plates

To give you a more concrete answer, here are the most common industries that use CCO plate:

  1. Iron and Steel Industries
  2. Coal Processing and Mining Industries
  3. Cement and Construction Industries
  4. Power & Generation Industries
  5. Fabrication Industry
  6. And Many More!

These are all industries that usually engage in activities that have high impacts and temperatures. But, the use of CCO plates aren’t just limited to these!

How Hard are CCO Plates?

The hardness of CCO plates usually depends on the manufacturer; as well as the procedure on how it’s done.

How Hard Are CCO Plates

However, the average hardness that it has is around 700 and 850 in the Brinell Hardness Scale. Alternatively, it’s between 58 and 62 HRC.

How Are CCO Plates Made and Manufactured?

A CCO plate is manufactured and created through the deposition of materials on mild steel.

CCO Plates Manufactured

The materials that would be deposited are abrasion resistant, rich in chromium type of components.

Through this process, a CCO plate is created and manufactured. After it, certain processes follow allowing it to be qualified for application to a parent metal or a workpiece.

Are CCO Plates Wear and Abrasion Resistant?

Yes, CCO plates are wear and abrasion resistant.

CCO Plates Wear and Abrasion Resistant_

This actually is their main purpose – to provide the resistance that a certain part or component needs.

What Advantages Can CCO plate Give You?

The application of CCO plate on your parts and/or materials can give you a ton of benefits. Some of which include:

Higher Resistance to Wear and Abrasion

CCO plate improve and develop a part or a material’s resistance to abrasion and wear. Their composition is perfect for the strength and durability of materials.

Moderate to High Level of Impact Resistance

Because of its metallic properties, it’s also perfect for moderate to high levels of resistance. It can absorb shock in high different levels.


Imagine any construction material without a CCO plate coated to it; you’d have to purchase new parts or equipment.

With CCO plate, you can protect its surface, heightening the overall durability, longevity, and strength that it has.

CCO plates are all made and used for the benefit and the strength of your machines or equipment. You can count on it to prolong the lives and improves its resistance to wear.

Let’s review each of them in details. [hide]

What is the Hardness of the Chromium Carbide Plate?

Chrome carbide plate welding layers have extreme-level hardness.

Flatness of Chromium Carbide PlatesTypically, you can have surface hardness that can reach HRC 58 to 62, and a micro hardness that can go upwards of HV 1700 to 2000.

What is the Flatness of Chromium Carbide Plate?

The typical flatness that Chrome carbide plates have must be controlled in the range of ±3 mm per m.

Polished Hardfaced Chromium Carbide Overlay (cco) Wear PlateWaldun’s advanced welding processes can strictly control welding deformation, minimizing it to its fullest extent.

Moreover, after welding, we here at Waldun use a welding machine; it’s what we use to level our Chrome carbide plates. In fact, our Chrome carbide overlay plates can reach industry levels even without a leveler.

How to Cut to the Length of the Chromium Carbide Plate?

You can actually get the exact length of the Chrome carbide plate you need.

Plasma cutting is the most common method, as well as the most relied on. However, there are other methods available.

They include water jet cutting, as well as high-powered lasers.

How do you Weld Stud on Chromium Carbide Plates?

Stud welding is what you need to do to link Chrome carbide plates to other components.

Wear Liner With Stud WeldingBasically, the principle is that the Chrome carbide plate is fastened by the stud’s welding torch. One of the ends of the stud is touching the plate’s surface, then the arc welding will start.

What Kind of Chromium Carbide Overlay Plate is more Suitable for Acid Enviroments?

A myriad of Chrome carbide plate types can effectively and efficiently be used in high acid environments.

But, you will find it better and more effective if you utilize plates with high carbon content.

What Standards are required for Chromium Carbide Plates?

Different countries require different standards for their Chrome carbide plates.

We here at Waldun are certified in the Asian, American, European, and Australian standards. You can check out the certifications we’re certified against when you craft the transaction with us!

What Powders can be Used for Welding Chromium Carbide Plates?

You can use a wide range of powders for welding Chrome carbide plates.

From atomized iron welding powders to sponge irons powders, you can choose depending on what you need!

Where Can You Find the most effective Chromium carbide overlay plates?

There are a lot of makers as well as vendors of the Chromium carbide overlay plate in the market. We below at Waldun are thought about as the finest and also the most trustworthy.

We’ve been specializing in wear plate because 2005, and also we get on a consistent improvement to offer top quality Chromium carbide overlay plate to our customers.

Why Trust WALDUN For Your Chromium carbide overlay plate?

All our Chromium carbide overlay plates have been crafted and formulated with interest, gaining from each customer we come across. The equipment we utilize is cutting edge, as well as are likewise produced by us.

You can trust us for the supplication of Chromium carbide plate, for we’ve collaborated with numerous services in the past decades. You can expect your plate to be supplied to you within 20 days from the date of your order.

Plus, we can offer you a free example to see if it’s what you’re searching for! When you choose us for your Chromium carbide plate needs right here at Waldun, you will never fall short!

How long is the delivery time of chromium carbide overlay plate?

Generally it is 5-10 days if the goods are in stock. or it is 15-25 days if the goods are not in stock, it is according to quantity.

Can i get free sample of chromium carbide overlay plate?

Yes, you can get the sample free of charge.

What is payment terms of chromium carbide overlay plate?

We accept TT,LC.If you have good credit, we can accept OA.


Can i get after service if i buy chromium carbide overlay plate?

WALDUN has a professional after-sales service team and we are able to quickly solve customer’s problems. If there are any quality problems, the responsible person will provide reasonable solutions within 12 hours after being notified.

Where Can You Buy Chromium Carbide Overlay Plates?

You can purchase chromium carbide plates from many different suppliers all around the globe. But if you want the highest quality of chromium carbide plates, we here at Waldun can offer it to you. We’re the fastest-growing hardfacing and wear plate provider in the region. You can trust us!

What Should You Think about Before Buying a Chromium carbide overlay plate?

Many experts suggest thinking about some things before buying a Chromium carbide overlay plate. These referrals consist of:

  • Chemistry of the Chromium carbide overlay plate

There is a Chromium carbide plate that contains different chemistries for their chromium carbide plates. These chemistries can enhance and also add whatever your workpiece is.

Search for chemistries that would boost your parts or parts, not ruin it.

  • Size and Thickness

Bigger is frequently better– especially when it comes to Chromium carbide plate. The larger, more challenging, and thicker a plate is, the better.

  • Its principal objective is to secure your equipment.

These are simply 2 of the things you require to take into consideration. Avoid only buying an arbitrary Chromium carbide plate because it can break your workpiece instead of boosting and creating it.

How Can You Order Chromium Carbide Overlay Plates?

You can order chromium carbide plates in the same way of how you order regular AR steels. If you have a supplier in mind, you can contact them via their hotlines. Alternatively, you can also send them an email about it. It would be better to let them know of the amount beforehand.