The CRA clad pipes that we offer here at Waldun come in two types, which are CRA clad seamless pipe and the CRA clad scrolled pipe.
CRA Clad Scrolled Pipe
Waldun’s CRA clad scrolled pipe doesn’t have any limit for the upper inner diameter. For the radius, however, it’s required to be at the minimum of 100 mm.
You can choose to have any length for the CRA scrolled pipe. We also recommend the overlay thickness and the base thickness to be at ≧ 4mm and ≧ 5mm, respectively.
CRA Clad Seamless Pipe
For Waldun’s CRA clad seamless pipe, though, it’s perfect use to avoid and prevent weak joints, and for workpieces that have good-to-moderate amounts of roundness.
With the inner diameter, it’s required to be at a minimum of 80 mm. The length requirement of Waldun’s CRA clad seamless pipe should be ten (10) times the diameter.
Features of Waldun’s CRA Clad Pipes
Many companies and businesses choose Waldun’s corrosion resistant clad pipes because of the following features:
It conjures stability in hardness and toughness
The surface is flattened and smoothened out
It has proven wear and corrosion resistance
Provides excellent strength and durability
It’s extra-hard because of the fine distribution of chromium carbide
Applications of Our Corrosion-Resistant Clad Pipes
Waldun’s CRA clad pipes are best applied to instances and situations where chemicals are involved.
The best examples would include silos, storages, chutes, fittings, and many more. However, the improvement that Waldun was able to create was that we made it fit to other uses, too!
Whether you’re in the petrochemical industry, the aerospace industry, marine and maritime industry, even in the mining industry, Waldun’s CRA clad seamless and scrolled pipes would benefit you!
CRA Clad Scrolled Pipe
Inner diameter: No limit for upper
Inner radius: 100 mm (min.)
Length: No limit
Recommended overlay thickness: ≧4mm
Suggested base material thickness: ≧5mm
CRA Clad Seamless Pipe
Inner-hardfacing technique
Avoid weak joint
Good roundness
Inner diameter: 80 mm (Min.)
Length:10 times of diameter (Max.)
Recommended overlay thickness:≧4mm
Suggested base material thickness:≧5mm
Why WALDUN CRA Clad Pipe
Even distributed and fine chromium carbide precipitate
Outstanding wear resistance performance
Flat and smooth surface
Stable hardness
Excellent interface strength
High formability and machinability
We’re ISO 9001 certified, meaning all our procedures have been enhanced
We offer free samples to all potential clients
All products and deliveries are made within 2 to 3 weeks
Other than CRA clad pipes, you can also trust Waldun if you need hard wearing steel plates, CCO plates, tungsten carbide plates – even other welding machines and equipment.
Contact us and get the CRA clad pipes you’ve always wanted! Get Class A and world-class quality products without spending a fortune!
Get a free quotation for the materials and the clad pipes you’ve been looking for, too!
CRA clad pipes are among the many different materials used in the chemical industry. Not just that, you can also use them in high corrosion and oxidation areas, too.
It is important that you know everything about CRA clad pipes. Today, we’ll discuss things that revolve around Corrosion Resistant Alloy (CRA) clad pipes; also about other things related to it.
Without further ado, let’s jump straight right on!
What Does the Term CRA Mean?
CRA is short for what’s called a corrosion resistant alloy.
They’re special alloys you can use to buff machines and equipment, enhancing corrosion resistance and strength.
Common Types of Corrosion
In case you’re not aware, there area actually different types of corrosion, they include:
High Temperature Corrosion (Oxidation)
Atmospheric Corrosion
Galvanic Corrosion
Pitting Corrosion
Crevice Corrosion
Corrosion Resistant Alloys (CRA) Examples
It’s not just one product – in fact, there are many examples of corrosion resistant alloys.
The most common corrosion resistant alloy families include:
Copper-Based Alloys
Alloys that are copper based have exemplary quality electrical and thermal conductivity.
You can use them in salt water, water, air, as well as within an environment where inorganic chemicals are present.
Nickel Based
Nickel based alloys perform well when it comes to corrosion resistance. You can use them in fresh water, caustic alkalis, in the normal atmosphere, and so on!
Stainless Steel
The most common type of corrosion resistant alloys, it creates a level of oxide that heals itself.
What’s a CRA Clad Pipe?
It’s a steel pipe that’s been cladded with CRA material. They’re combined either through metallurgical or mechanical bonding.
You’ll find use for it if you’re in an industry prone to corrosion and rust.
Oftentimes, CRA clad pipes are used in the Oil & Gas industry, the Chemical industry, Pipeline transport, Marine industry, Natural Gas industry, and so on.
CRA Materials: What Are They?
CRA materials are materials that have high levels and degrees of resistance to corrosion.
They’re the ones you add to parts and components to improve its resistance properties.
How is a CRA Clad Pipe Manufactured and Created?
How is a CRA clad pipe created, you ask? Well, the process in which CRA clad pipes are created isn’t actually complex.
In fact, it can be bonded through many different processes such as:
Coextrusion
Explosion Bonding
Hot Rolling
Weld Overlay
Powder Metallurgy
And Many More
You can make or create CRA clad pipes by using processes that produce a metallurgical bond.
Whatever bonding or fusion process it may be, it’ll always follow this particular structure:
Preparation of the pipe to be cladded
Grit blasting of the inside of the pipe
Application of corrosion resistant materials
Fusion of the CRA material to the pipe
This is the entire process of creating or manufacturing a CRA clad pipe. It’s not complicated as how it looks like. However, it’s a long process because it needs to make sure that the process was successful.
What’s the Difference Between Lining and Cladding?
Many people get confused in discussing the two. When in reality, it’s actually easy to determine!
Both are processes to improve and enhance a pipe; but they’re quite distinctively different.
Pipe cladding is a metallurgical bonding process between cladding material and the pipe. Pipe lining, on the other hand, is the mechanical bonding process of the material to the pipe.
You would want to apply cladding if you want a corrosion resistant pipe. Lining, if you want an abrasion resistant pipe.
They’re two fusion methods with different goals and objectives.
CRA Clad Pipe Welding
CRA clad pipe welding is a fusion process you can use to deposit CRA material to a pipe.
It’s one of the many techniques to fuse and combine CRA materials to parts and components.
How are CRA Clad Pipes Tested and Inspected?
There are many different tests you can do to measure the effectiveness of CRA clad pipes.
Some of which include:
Fracture Toughness Tests
Flattening Tests
Residual Magnetism
Ultrasonic Inspection
Guided Bend Tests
CRA Liner and Cladding Bond Strength Tests
Tensile Tests
And Many More
Different tests and assessments measure different results.
What is Non-Destructive Test (NDT)?
It’s a type of testing process that carefully analyzes a certain material’s properties.
You can find and distinguish it as it is the last step of a manufacturing process.
Before it gets delivered, it needs to undergo the NDT first.
Why Should You Use a CRA Clad Pipe?
If you are in the chemical industry, or any other industry prone to corrosion, you can use CRA clad pipes to:
Prevent easy corrosion to your pipes
Prolong and lengthen the lives of your pipes
Save money from frequent purchasing of piping and tubing
And many more
What’s the Main Advantage Can You Get From Using a CRA Clad Pipe?
The main purpose of a CRA clad pipe is to prevent corrosion from occurring.
The properties of CRA materials make this easy, allowing your pipes to stay healthy and free from corrosion. Aside from that, other benefits you can get from it include:
Better productivity
Less damages of your pipes
Faster operations
Healthier working environment
Stronger and much more reinforced pipes
And so on
Where Can You Get CRA Clad Pipes?
You can purchase CRA clad pipes from a lot of companies all across the globe. However, you can get the best ones here in China.
When it comes to producing CRA lines pipes, no other company is better than us here at Waldun. We offer state-of-the-art CRA cladded pipes to our clientele.
Whatever industry you might be in, you can bank on us to help you.
Work with us and get a free sample of the products you need!
