Magnesia Aluminum Brick include ordinary magnesia-aluminum bricks and magnesium-aluminum spinel bricks.
Magnesia Aluminum Brick has the characteristics of high temperature performancehigh thermal shock stability
Magnesia Aluminum Brick is an alkaline refractory material fired from magnesia and a small amount of industrial alumina or alumina.
Magnesia Aluminum Brick has the characteristics of high temperature performance, high thermal shock stability, strong resistance to corrosion by alkaline substances, good wear resistance and good flexibility against high temperature heat load.
Magnesia Aluminum Brick has the characteristics of high temperature performancehigh thermal shock stability
It is mainly used in the top of steelmaking open and electric furnaces, high temperature tunnel kiln, large cement rotary kiln and non-ferrous metal smelting furnace.
Magnesia Aluminum Brick has the characteristics of high temperature performancehigh thermal shock stability Technical guidance:
According to customer's practical production requirements, our technical department will assist users to make adaptive & targeted improvements to the products on the basis of the original required specifications, putting forward better optimization scheme to extend the serve life of the products in the designated kiln.
In the masonry, usage and other aspects of the products, we provide the corresponding standard construction scheme for each batch of products.
We strongly recommend user to follow our construction scheme for installation and construction, in order to achieve the best use effect of the product. On-site guidance can be provided when necessary.
Magnesia Aluminum Brick has the characteristics of high temperature performancehigh thermal shock stability Specification:
| Items |
Index |
| Magnesium aluminum spinel brick |
Magnesia aluminum brick |
| MLJ-80 |
MLJ-75 |
MLJ-70 |
MLZ-80A |
MLZ-80B |
| MgO (%) ≥ |
80 |
75 |
70 |
80 |
80 |
| Al2O3(%) |
8～20 |
8～20 |
8～20 |
5～10 |
5～10 |
| Apparent porosity (%) ≤ |
17 |
19 |
20 |
18 |
19 |
| Bulk density (g/cm³) |
2.85～3.15 |
2.85～3.15 |
2.85～3.10 |
2.85～3.10 |
2.85～3.10 |
| Cold crushing strength (MPa) ≥ |
40 |
40 |
40 |
35 |
30 |
| Refractoriness under load(0.2MPa) /℃ ≥ |
1700 |
1650 |
1600 |
1600 |
1580 |
| Resistance to themal shock times (water-cooling) ≥ |
10 |
10 |
8 |
4 |
4 |
