Brown alumina oxide 0-1mm 1-3mm 3-5mm 200F 325F for Refractory ramming mix
Brown Alumina Oxide 200F and 325F are professional fine refractory powders specially customized for refractory ramming mix, castables and high-temperature furnace lining materials. Produced from high-quality bauxite through electric arc furnace melting, fine crushing, magnetic separation and strict particle classification, this brown fused alumina features high refractoriness, excellent structural strength and stable thermal performance, serving as a core functional filler for industrial refractory formulations.
Brown Alumina Oxide 200F and 325F is made from Calcined Bauxite. It is a hard and tough material, used in manufacturing of grinding wheels (both vitrified and resin bonded) and coated products. These grains are also used for shot blasting and as polishing media. Refractory grade BFA is used as a raw material in the manufacture of high alumina refractory.
PHYSICAL PROPERTIES-Brown Alumina Oxide 0-1mm 1-3mm 3-5mm 200F and 325F
| Specific Weight | 3.96 g/ cm3 |
| Mohs Hardness | 9.0 |
| Crystal form | α-Al2O3 |
| Melting Point | 2250℃ |
TYPICAL CHEMICAL ANALISIS [%]-Brown Alumina Oxide 0-1mm 1-3mm 3-5mm 200F and 325F
| Size | Al2O3 | Fe2O3 | SiO2 | TiO2 | CaO | MgO |
| 0-1mm 1-3mm 3-5mm 5-8mm | ≥95.0 | ≤0.30 | ≤1.0 | 1.7-3.4 | ≤0.42 | / |
| 200F 325F | ≥92.5 | ≤1.0 | ≤3.0 | 3.0-5.0 | ≤0.60 | / |
