Brown Fused Alumina FeSi
Brown fused alumina FeSi is the most-used industrial blasting abrasive: alumina hardness combined with high mass, produced by Kuhmichel Abrasiv. On pallets there are 6 items to choose from.
Material and technical data
The analysis shows why FeSi differs from the pure grades: 39 % Al₂O₃, plus 46 % iron, 7.2 % silicon and 3 % titanium. That yields a specific gravity of around 5.5 g/cm³ — well above the 3.9 to 4.1 g/cm³ of white fused alumina. Hardness stays at 9 mohs, the grain is angular, the melting point about 1,500 °C, bulk density 2.2 to 3.0 g/cm³.
Grain sizes and applications
Hardness times mass gives impact energy, and that is exactly where FeSi draws its performance from. A handful of grain sizes cover the bulk of applications: descaling, derusting, paint stripping, roughening before coating — plus use in wear protection. As an all-purpose abrasive it is what actually runs in most blast machines.
Why the pallet
In continuous use FeSi is the classic pallet article — high consumption, always the same grade, and every decanting operation from 25 kg bags costs time. The bag remains sensible for repairs and mobile jobs. All grades on pallets are under palletised goods.
What matters when choosing
The iron content is both the advantage and the limit. It supplies the mass but leaves iron particles on the surface. On structural steel that is irrelevant; on stainless steel and titanium it causes foreign rust — there an iron-free medium belongs in the machine.
Alternatives in the range
For iron-free work Brown Fused Alumina and White Fused Alumina are available. If the medium is blasted only once, Asilikos is the more economical alternative. The complete blasting media programme shows every grade side by side.
Your advantage when buying from us
- All common blasting media from stock – mineral, metallic, glass, ceramic and organic
- We ship worldwide
- Fast delivery with UPS (parcel) or DSV (pallets) – express shipping also available
- We are happy to advise on medium type, grain size, consumption and packaging
- Dealer? Send your dealer enquiry straight to us – discounts depending on volume
- Large company or public authority? Order on account – simply ask
