
Magnesite brick
Other name: Magnesia brick
Model Number: HCR M91,HCR M93,HCR M95,HCR M97
Certification: ISO9001-14001
Minimum Order Quantity: 5 MT
Magnesite brick
Introduction:
Magnesite brick is an alkaline refractory material with more than 87% of cinnasite as raw material, periclase as the main phase, and few glass phases.
Advantages:
1. Strong alkali resistance
2. Higher thermal conductivity and decrease with increasing temperature.
3. High refractoriness, up to 2000 °C
4. Usually, the refractoriness under load is between 1520 and 1600 °C, high-purity magnesite bricks can reach 1800 °C.
Application:
1. Open-hearth furnace
2. Converter
3. RH vacuum processing furnace
4. Tunnel kiln
Magnesite brick phycial and chemical
| Item | HCR M91 | HCR M93 | HCR M95 | HCR M97 |
| MgO min% | 91 | 93 | 94.5 | 96.5 |
| SiO₂ MAX% | 4 | 2.5 | 1.5 | 1 |
| CaO MAX% | 2.5 | 2 | 1.5 | 1.2 |
| Apparent porosity MAX % | 18 | 18 | 18 | 17 |
| Bulk Density g/cm³ | 2.86 | 2.95 | 2.95 | 3.05 |
| Cold Crushing Strength Mpa ≥ | 50 | 50 | 55 | 60 |
| Refractoriness under load of 0.2Mpa(℃) ≥ | 1570 | 1620 | 1650 | 1700 |