Magnesia Castable
Mainly used to construct open hearth furnaces, electric furnaces, oxidation converters, non-ferrous metal smelting furnaces, cement kilns, calcining kilns, etc.
Technical Data
| Item/Grade | AMC-70 | AMC-80 | AMC-85 | AMC-95 | |
|---|---|---|---|---|---|
| ω (Al2O3 +MgO) /% ≥ | 70 | 80 | 85 | 95 | |
| Volume density (110 ℃ × After 24 hours of drying/(g/m) ³) ≥ | 2.6 | 2.8 | 2.85 | 2.95 | |
| Room temperature compressive strength/MPa | 110 ℃ × 24-hour drying ≥ | 20 | |||
| 1000 ℃ × After 3 hours of burning ≥ | 30 | ||||
| Experimental temperature × After 3 hours of burning | 50(1500℃) | 50(1550℃) | 60(1550℃) | 60(1600℃) | |
| Heating permanent line change | (Experimental temperature × 3h) | ‐0.5~＋1.5(1500℃) | ‐0.5~＋1.8(1550℃) | ‐0.2~＋1.8(1550℃) | 0~＋1.0(1600℃) |