Duralum® RF is a brown, fused aluminum oxide refractory grain produced from selected grades of bauxite. The chemical composition and crystalline size are carefully controlled to ensure maximum product uniformity.
Duralum® RF is used as a raw material in dense, high temperature refractory products such as ramming and gunning mixes, castables, and in the form of loose grain.
Duralum® RF DCF are brown fused alumina dust collector fines obtained from the dust collector systems connected to the crushing and grading units. Aluminum Oxide content varies slightly, but is consistently above 90%.
Duralum® RF Dust Collector Fines are used in general refractory applications.
Duralum® RF HR is a specially treated brown fused aluminum oxide refractory grain. The chemical composition and crystalline size are carefully controlled to ensure maximum product uniformity.
Duralum® RF HR is manufactured specifically for applications such as bricks, tiles, filter plates, etc. where spalling is an issue.
Duralum® HC is a virgin fused brown aluminum oxide specially calcined to eliminate adhering to dust and to improve capillarity.
Duralum® HC is used primarily as a media in fluid bed furnaces and can also be used as an abrasive or refractory grain where the elimination of adhering dust and a very clean grain surface is desirable.