Iron, Steel and Metallurgy
Refurbishment of heavy industrial equipment such as rolling mill rolls, furnace components and fans/rotors with HVOF/arc spray coatings and hardfacing.
In brief: In steel plants, rolling mill rolls, furnace rolls and guide rollers operate under high temperature, wear and thermal shock. UMEK refurbishes these parts with hardfacing and HVOF coatings.
Application Areas
Our Solutions for Iron & Steel
- Roll and shaft restoration
- HVOF wear-resistant coatings
- Arc spray stainless coatings
- Hardfacing
- Dimensional restoration of bearing housings and bearing seats
- High-temperature coatings
- Inconel weld overlay
- Fan and rotor overhauls
- Weld restoration of crane wheels and travel gear
- Remanufacturing of worn machine components
Typical Causes of Wear in Iron, Steel and Metallurgy
High-temperature wear
Contact with hot material causes oxidation and wear at the same time.
Thermal shock
Water cooling and heating cycles can cause cracking at the surface.
Mechanical contact load
Continuous loaded contact leads to surface fatigue.
Which Part, Which Problem, Which Process?
| Part / equipment | Typical damage | Process considered |
|---|---|---|
| Rolling mill rolls | Wear, surface cracking | Hardfacing and precision grinding |
| Furnace rolls | High-temperature wear | Cr₃C₂-NiCr HVOF or alloy overlay |
| Guide rollers and shafts | Loss of diameter | HVOF or weld build-up, machining |
| Shear blades and cutting surfaces | Edge wear | Hardfacing |
The process for each part is finalised through an engineering assessment of operating conditions, base material and damage condition. At our facility in Ankara, coating and final grinding are carried out in a single workflow.
Read Before You Decide
About Iron, Steel and Metallurgy
Which coating is suitable for furnace rolls?
At high temperatures, chromium carbide based (Cr₃C₂-NiCr) systems are widely considered because of their oxidation resistance. For a detailed comparison, see our Cr₃C₂-NiCr vs WC-CoCr guide.
When should Stellite alloys be selected?
Where hot wear, galling and impact occur together, cobalt-based Stellite grades are considered; see our dedicated guide for grade selection.
How does the roll restoration process work?
It proceeds through measurement and damage analysis, the appropriate overlay or coating, followed by grinding and dimensional inspection.
Have a Project in the Iron & Steel Industry?
Send us the technical details of your part and we will prepare a quotation with an engineering assessment within 24-48 hours.