FeCrAl sintered felt is rated up to 1000 C with excellent oxidation and sulfidation resistance and stable resistivity - for high-temperature flue gas filtration, metal fiber burner nozzles and electric heating elements, a cost-effective upgrade over stainless felt in hot service.
FeCrAl felt is sintered from FeCrAl alloy fibers. Aluminum forms a dense Al2O3 protective scale at high temperature, greatly improving oxidation and carburization resistance. The felt has high porosity and good permeability and works about 200 C hotter than 316L felt. Its high, temperature-stable resistivity suits large-area uniform porous burners and heating elements.
FeCrAl fiber felt is a porous metal medium made of iron-chromium-aluminum alloy fiber by non-woven laying and high-temperature sintering, rated 1000-1150 C for continuous service and up to 1300 C peak. At high temperature a dense self-grown Al2O3 oxide layer forms on the fiber surface and blocks further oxidation - a self-healing protection mechanism ensuring long life. Compared with ceramic media it is tough (no brittleness or particle shedding), crack-free under frequent thermal cycling, vibration-resistant, and can be corrugated and welded. Its electric-heating-alloy nature makes it ideal for porous burners, industrial electric heating and hot-gas filtration.
For fully premixed metal fiber burners, infrared burner panels, hot gas dust filter cartridges, catalytic combustion supports and electric heating plates. Thickness, porosity and dimensions customizable.
All data above are obtained under specific test conditions; the actual solution must be engineered to site conditions. AIFILTECH provides custom design and sizing based on actual gas volume, temperature, dust characteristics and emission limits.
