Steel and PP fibres for the refractory industry
Heat-proven in many areas
If higher resistance is needed at higher levels of heat impact, KrampeHarex steel, stainless steel and PP fibres will literally pull the iron from the fire. Petrochemistry, the iron industry, the steel industry, and the cement industry are among the hot areas of application for this. They are also used for coke making or for ceramic furnaces.
Here KrampeHarex fibres made of synthetic materials, standard steel, or stainless steel can reach their full potential as they increase resistance to high temperature corrosion and extend the service life of components.
Our refractory fibres are the result of more than
thirty-five years of research and development. Due to the
production in our own factory in Germany and the intensive
dialogue with our customers, practical experience is continuously
incorporated in our work. We’re available when
you need us.
Made for high pull‑out resistance and reliable crack control in refractory concretes
For controlled pore formation during heat-up, reducing the risk of explosive spalling.
Straight fibres with excellent dispersion in refractory mixes often used in areas with limited mechanical impact.
Your refractories can be greener!
Why aren't they already?
With the world's lowest GWP of 0.257 kg CO₂ eq, 100% green electricity and a recycled raw‑material share of over 90%, KrampeHarex sets new benchmarks for low‑carbon steel fibres in high‑temperature applications. For refractory producers, this means a measurable reduction in product‑related emissions and a direct contribution to greener thermal processes. Our fibres support energy‑efficient furnace operation, help customers meet tightening ESG and Scope‑3 requirements, and strengthen access to green procurement frameworks across the steel and refractory industries.
Refractory steel fibres from KrampeHarex
For industrial high-temperature applications
Refractory materials require specialised expertise. The material must meet various criteria depending on the temperature, processing and thermomechanical stress. At the same time, the most cost-effective solution must ensure maximum safety and service life. Optimise your refractory materials by using precisely the right steel fibres for your application – customised specifically for you.
- Iron and steel industry
- Petrochemical industry / energy development
- Cement and chalk industry
- Waste incineration plants
Customised fibres for every component
| Blast furnace channels | Dams / Discharge rings | Reaction chambers |
| Blast furnace linings | Door plugs | Slag scrapers |
| Boiler tubes | Electric furnace cores | Slide gates |
| CASOB bells | Feed lines | Steel ladles |
| Ceramic furnaces | Heat shield doors | Transport trolleys |
| Combustion chambers | Injection lances | Turbine housing |
| Coolers | Inner linings | Vacuum covers and nozzles |
| Custom solutions | Overflows | Weirs |
- Optimised fibre geometry for fast fibre distribution and easy insertion
- Special packaging facilitates easy handling
- Personalised assistance in selecting the optimal fibre specification
- Short delivery times, flexible service
- Company-owned plant in Germany
- Structural components last longer, even under extreme conditions
- Low corrosion at high temperatures
- Higher refractory mass ductility, guaranteed homogeneity, less spalling
- Longer service life of components
- Significant reduction in operating costs and reduction of downtimes
Material specifications
for KrampeHarex fibres
Find the right fibre for your refractory concrete
The KrampeHarex Fibrefinder
Do you have questions
about our fibres?
Contact us!
Your direct line
to KrampeHarex
Julian Ahlers
Sales Refractory Fibres
