The Weldclad ranges of welding consumables were developed predominately for use within the steel manufacturing industry. Over the years the product range has expanded and ranges from low alloy “buffer” materials to more exotic Nickel based alloys.

Continuous Casting
The aggressive operating conditions of the continuous caster demand a multipurpose cladding material. The clad rolls have to withstand, high temperatures, erosive wear, chemical attack from chlorides and mould powders, mechanical loading, and thermal fatigue. As all casters are unique (even two of the same design will operate differently) we need to gather as much information as possible before we can recommend which cladding material should be used in the caster.

Initially we will want to know what the predominant reasons for roll failure are.
For example:

• Cracking
• Wear
• Corrosion
• Bending

To offer a complete service we also need to know the following details about your particular caster:

• Is the caster a “full body” or split-roll design?
• What are the roll dimensions, barrel diameter and length?
• What is the base material of the rollers?
• How were the rolls clad previously?
• What is your welding capability?
• Are you repairing used rollers or manufacturing new rollers?
• How are the rolls cooled internally, by a central bore, or by peripheral drilled bores, so called revolver or gun-barrel style?
• Is there any external cooling, such as water sprays or air/water mist?
• What products are you casting?

This information will determine which alloy from the Weldclad range will be most suitable.

Hot Rolling Mills
Using Weldclad materials can enhance the service life of many items in hot rolling mills. Items such as table rolls, run out rollers and some plate levellers are easily welded with Weldclad consumables
Other larger or heavier items, such as pinch rolls, primary mill rolls and edger rolls, or items with a high C content, or that have base materials that are difficult to weld, such as cast pinch rolls may require special materials and equipment. In these cases we need to know the following to make a recommendation:

• The component’s application, for example table roll, edger roll, pinch roll etc.
• The chemical composition of component?
• Your welding capability?
• Your heat treatment capability?

This information will determine which alloy from the Weldclad range will be most suitable.

If currently do not have the welding or heat treatment capability to repair such rolls, then we can provide contacts with specialist welding operations worldwide.