Brown Fused Alumina
Brown fused alumina is the working grade among the aluminas — good value at full alumina hardness, produced by Kuhmichel Abrasiv. In 25 kg bags there are 39 items to choose from.
Material and technical data
Brown fused alumina is an aluminium oxide with additions that give it its brown colour. Hardness is 9 mohs, the grain is angular and stays that way over several cycles — it fractures to fresh sharp edges. Compared with the iron-free white grade the price per kilogram is much lower while the removal rate is practically the same.
Grain sizes and applications
The material is used for dry and wet blasting, in bonded abrasives, as a loose abrasive, on coated abrasives and in refractory products. The range of grain sizes covers everything from coarse descaling to fine matting; grain size governs not only the speed of work but also the roughness profile the coating has to key into.
Why the 25 kg bag
As a working grade brown fused alumina goes out in volume — the 25 kg bag is still the more flexible unit when several grades run in parallel or the machine switches between jobs. Anyone blasting the same grade permanently is better off with the pallet. All grades in this unit are under bagged goods.
What matters when choosing
Brown fused alumina is the default when nothing argues against it. Two things do argue against it: when iron in the medium would create foreign rust, and when maximum impact energy at limited pressure is required — there the heavier FeSi grade has the edge.
Alternatives in the range
On stainless steel and in medical technology Brown Fused Alumina FeSi is the right choice, for a high removal rate White Fused Alumina. Where still more hardness is needed, Silicon Carbide comes into play. All grades are listed in the blasting media programme.
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
