Product Description
Fused magnesia-alumina spinel
Fused magnesia-alumina spinel is a new type of high-
purity synthetic refractory raw material, which is made of
alumina and high-purity light-burned magnesia as the
main raw materials in an electric arc furnace after being
melted at a high temperature above 2000 ºC and then
cooled. There are mainly MA-65, MA-70 and other
models, and various types of fused magnesia-aluminum
spinel can also be produced according to customer
requirements.
Product Parameters
| ITEM | MA-70 | MA-65 |
| Grit >0.1mm | FINE ≤0.1mm | Grit >0.1mm | FINE ≤0.1mm |
| AL2O3%≥ | 70-77 | 70-77 | 63-68 | 63-68 |
| SiO2%≤ | 21-28 | 21-28 | 30-35 | 30-35 |
| Fe2O3%≤ | 0.40 | 0.40 | 0.60 | 0.60 |
| R2O%≤ | 0.30 | 0.5 | 0.5 | 0.5 |
| APPARENT POROS≤ | 5.0 | 4.0 |
g/cm³ BULK DENSIY≥ | 3.30 | 3.35 |
China
