CRA Weld Overlay Cladding

When it comes to CRA weld overlay cladding, Waldun is undoubtedly the best option you have.

Waldun can deliver excellent quality CRA weld overlays, and whatever weld overlay cladding equipment it may be!

Waldun can provide high quality CRA weld overlay cladding machines. You can use it in working on tubes, pipes, and other workpieces that are round and cylindrical in shape!

Waldun’s CRA Weld Overlay Cladding Machines and Equipment

Our CRA weld overlay cladding machines are best used for working on tubes, pipes, and objects of the same kind.

CRA Weld Overlay Cladding

But is it just for that very purpose? No!

You can use it on the interior or the exterior of your workpiece, for inner or outer CRA weld overlay cladding.

Waldun’s machines and equipment can perfectly be paired with any CRA material to make it more durable, more corrosion and abrasion resistant, and to prolong its lifespan.

Features and Benefits

The CRA weld overlay cladding equipment Waldun has have these features and capabilities:

Features and Benefits

  • It utilizes an air-cooled torch, which prolongs consumption timeframe
  • PLC is the primary operational motor that makes it work, but, you can choose what motor you want to utilize
  • It’s adaptive to the type of welding solution that will be used
  • Our machines have the load capacity of 2 tons
  • No deformations guaranteed, thanks to the excellent water-cooling support

What Are the Applications of Waldun’s Weld Overlay Cladding Equipment?

Industries that utilize pipes, tubes, and other round and cylindrical objects will find Waldun’s CRA weld overlay cladding machines beneficial.

Applications of Weld Overlay Cladding Equipment

Waldun is trusted by many businesses in various industries, the most common ones include mineral and coal mining, and building & construction, and the railroad & transport industry.

But, you can also make use of it if you’re in other industries such as the petrochemical industry, oil & gas industries, power and generation, shipyard and shipbuilding, and the like.

Why Choose Waldun?

What makes Waldun different from other CRA weld overlay cladding machine manufacturers in the market?

  • We offer a 1-year warranty to all machines and equipment we offer
  • All parts and components of our weld overlay cladding machines are sourced from trusted and reliable manufacturers
  • Waldun offers complete installation and assembly services
  • Delivery time for all orders are within 2 to 3 weeks
  • We offer excellent and high quality aftersales services

Other Products Waldun Offers

Waldun isn’t just the best manufacturer of clad welding overlay machines and equipment.

In fact, you can also get a ton of other machines and equipment from us too including tank and pipe turning rollers, fit-up rolls, welding positioners, column & boom welding machines, even wear plates!

When in doubt of where you need to go for CRA weld overlay cladding machines, never hesitate to give us here at Waldun a call.

We are always prepared and ready to assist you with whatever you require!

Get the estimate you need for the machines and equipment you’re looking for. Wherever you are, Waldun will always be a buzz or an email away!

CRA Weld Overlay Cladding – The Ultimate FAQ Guide

Corrosion is one, if not the biggest enemy of steel and metal. It is a big problem for machines and equipment, especially those that are chemically exposed.

Being in the industry, what are the specific things you need to fight it? What processes and should you do to avoid corrosion?

This post will be all about learning what CRA weld overlay cladding is. What is it, how it can help, and what benefits and advantages it can give.

What Does CRA Stand For?

CRA is an abbreviation for Corrosion Resistant Alloy. It’s a material that has high resistance power in blocking corrosion.


It’s an adjective to describe workpieces or surfaces that have undergone CRA processes.  

What is CRA Material and Where Is it Usually Used?

They are reinforced materials that have properties, excellent in resisting corrosion.

CRA Material

Normally, they’re used in industries where corrosion is most common. The most common industry susceptible to it would be the Oil & Gas Industry.

What is a Cladding Material?

Clad material is also known to be the CRA layer. This is the layer added to the surface, improving its resistance against corrosion.

Cladding Material

At the same time, it improves the base metal’s desirable properties promoting strength and durability.

What is CRA Weld Overlay?

It’s a welding process that extends the lives of parts or components that are prone to corrosion.

CRA Weld Overlay

Furthermore, you could also use them in situations where procedures can corrode materials.

What is CRA Cladding?

Cladding is the process of depositing materials to strengthen the exterior of a surface.

CRA Cladding

CRA cladding would involve deposition of CRA material to a part or component. The goal of CRA cladding is to make parts and components resistant to corrosion.

Is Chromium the Most Corrosion Resistant Element?

No, Chromium isn’t the most corrosion resistant element. Iridium is the most corrosion-resistant element of all.


For metals, though, you can find that both Tungsten and Iridium are the most resistant to it.

What Causes Corrosion in Metal?

Corrosion happens when metal reacts with a different substance like Hydrogen or Oxygen.

Corrosion in Metal

When it reacts, the atoms on the metal surface oxidize, which then forms corrosion. This does not only damage the exterior or the surface, but also reduce its capacities.

What are the Effects of Corrosion to Your Parts or Components?

There are numerous effects corrosion can have to your metal or steel.

Effects of Corrosion

Some of the most common ones include:

Loss of Strength

Corrosion isn’t only ugly-looking; it can also have adverse effects on the strength of parts, too.

In fact, they can make metallic surfaces structurally weaker due to:

  • The reduction of flexural strength
  • Relevant decrease in axial strength

Significantly Decreased Bond Strength

When a certain steel or metal corrodes, corrosion products widen and expand.

This can reduce the capacity of the corroded section, reducing its overall bond strength.

Reduction of Ductility

Due to some properties, metals are known to be ductile and malleable materials.

When corrosion consumes a part or a component, it greatly reduces ductility altogether.

Loss of Value

The structural degradation that it has could downgrade the value of machines.

Because of its undesirable physical effects, it can translate to being invaluable in the long run.

These are just some of the most common effects that corrosion can do to metallic parts and structures.

What is a CRA Clad Pipe?

A CRA clad pipe is a material that is comprised of CRA-rich properties and steel pipes. You can make them through welding or other mechanical processes.

CRA CLad Pipe

You can use CRA clad pipes in the Oil & Gas Industry because those are the most prone to corrosion.

The CRA Material List

CRA alloys that are the least prone to corrosion include, but are not limited to:

  • Chrome and Chromium
  • Stainless Steel
  • Nickel
  • Iron
  • Titanium
  • Nickel
  • Tungsten

If you use and combine them to other metals, you can promote corrosion resistance.

The resistance would be even greater than corrosion-resistant components such as carbon steel, and the like.

How Can CRA Weld Overlay Help You?

By performing a CRA weld overlay, you can stress less about your parts being corroded.

CRA Material - Stainless Steel

You’d want to use this process to achieve the following things:

  • To improve the service life of metallic parts and components
  • Protection even in the most corrosion-prone situations and processes
  • More efficient and productive processes from your metallic parts and components

Those aren’t just the benefits you can get from the CRA weld overlay cladding process. There are a lot more!

What is the CRA Overlay Process?

The CRA overlay process is the deposition of corrosion-resistant alloys through welding.

CRA Weld Overlay How Can It Help

You can accomplish it by using or utilizing different welding processes, which may include:

  • Submerged Arc Welding (SAW)
  • Flux-Cored Wire Process
  • Plasma Transferred Arc Welding (PTA) Welding
  • Shielded Metal Arc Welding (SMAW)
  • Metal Inert Gas Welding (MIG)

Which Industries Need the CRA Weld Overlay Process?

The industries that would benefit the most from CRA weld overlay would be those that perform operations and utilize chemicals and fluids.

CRA Overlay Process

Moreover, high temperature and high stress situations can also benefit a lot from it. The most common industries prone to corrosion are, but not limited to:

  • Chemical Processing Industry
  • Paper and Pulp Industry
  • Offshore and Marine Industry
  • Oil & Gas Industry
  • Nuclear Industry
  • And Many More

Who Can Help You With CRA Weld Overlay?

There are numerous companies and businesses that you can count on for your CRA weld overlay needs.

Here in China, we at Waldun are deemed and considered by many industries as their go-to company for all the CRA weld overlay procedures they need.

For more than a decade, we’ve consistently improved our clients’ equipment and machines. We utilize specialized welding systems that you can absolutely bank on!

We also have the most dedicated and the most talented workers, ready to pursue projects based on your business needs!