1.Description:
Fused Spinel uses industrial alumina or high-purity bauxite and light-burned magnesia, which is fused in proportion to melted in the electric arc furnace at about 2200 °C.
2.Characteristics:
It characterized with good erosion resistance, abrasion resistance,good thermal shock stability.
3.Application:
It is widely used in spinel brick, steel-casting, auto parts, precision-casting ,and also be used to make ladle pouring material.
4.Specification:
Item | Unit | AM-65 | AM-70 | AM-85 | AM90 | |
Chemical Composition | Al2O3 | % | 63-68 | 71-76 | 82-87 | 88-92 |
MgO | % | 31-35 | 22-27 | 12-17 | 8-12 | |
CaO2 | % | 0.80 max | 0.65 max | 0.50 max | 0.40 max | |
Fe2O3 | % | 0.40 max | 0.40 max | 0.40 max | 0.40 max | |
SiO2 | % | 0.50 max | 0.40 max | 0.40 max | 0.25 max | |
Na2O | % | 0.50 max | 0.40 max | 0.50 max | 0.50 max | |
Bulk Density | g/cm3 | 3.3 min | 3.3 min | 3.3 min | 3.3 min | |
Grain Size | mm | 8-5, 5-3, 3-1, 1-0 | ||||
Fine Powder | mesh | -220, 325F |


