Product description
Magnesite chrome brick is a refractory product with MgO and Cr2O3 as the main components, and cubic magnesite and spinel as the main mineral components. The main raw materials for the manufacture of magnesia chrome bricks are sintered magnesia and chromite, the purity of magnesia raw materials should be as high as possible, the chemical composition of chromite requirements are: Cr2O3:30 ~ 45%, CaO: ≤1.0 ~ 1.5%
Applications of magnesite chrome brick Brick:
◆Furnace of incineration of garbage
◆Furnaces of chemical industry and construction industry.
◆CFB (circulating fluidized bed) and heat treatment furnace
Physical and chemical index
|
Items |
ZMGe |
ZMGe |
ZMGe |
ZMGe |
ZMGe |
ZMGe |
||||||
|
/ |
20A |
20B |
18A |
18B |
16A |
16B |
14A |
14B |
12A |
12B |
8A |
8B |
|
Mgo% ≥ |
45 |
40 |
50 |
45 |
52 |
47 |
60 |
55 |
65 |
60 |
65 |
60 |
|
Cr2O3% ≥ |
30 |
30 |
26 |
26 |
24 |
24 |
20 |
20 |
16 |
16 |
16 |
16 |
|
Fe2O3% |
8-15 |
8-15 |
7-15 |
7-13 |
6-13 |
6-13 |
5-13 |
5-13 |
5-12 |
5-12 |
5-12 |
5-12 |
|
SiO2% ≤ |
1.5 |
2.5 |
1.5 |
2.5 |
1.5 |
2.5 |
1.5 |
2.5 |
1.5 |
2.5 |
1.5 |
2.5 |
|
Apparent porosity/% ≤ |
15 |
16 |
15 |
16 |
15 |
16 |
15 |
16 |
15 |
16 |
15 |
16 |
|
Bulk density g/cm3 ≥ |
3.38 |
3.38 |
3.33 |
3.33 |
3.30 |
3.30 |
3.25 |
3.25 |
3.20 |
3.20 |
3.20 |
3.20 |
|
CCS /MPa ≥ |
50 |
50 |
50 |
50 |
50 |
50 |
50 |
50 |
50 |
50 |
50 |
50 |
|
0.2MPa refractoriness under load ≥ |
1700 |
1700 |
1700 |
1700 |
1700 |
1700 |
1700 |
1700 |
1700 |
1700 |
1700 |
1700 |
Packages:
Physical and chemical index
|
Items |
ZMGe |
ZMGe |
ZMGe |
ZMGe |
ZMGe |
ZMGe |
||||||
|
/ |
20A |
20B |
18A |
18B |
16A |
16B |
14A |
14B |
12A |
12B |
8A |
8B |
|
Mgo% ≥ |
45 |
40 |
50 |
45 |
52 |
47 |
60 |
55 |
65 |
60 |
65 |
60 |
|
Cr2O3% ≥ |
30 |
30 |
26 |
26 |
24 |
24 |
20 |
20 |
16 |
16 |
16 |
16 |
|
Fe2O3% |
8-15 |
8-15 |
7-15 |
7-13 |
6-13 |
6-13 |
5-13 |
5-13 |
5-12 |
5-12 |
5-12 |
5-12 |
|
SiO2% ≤ |
1.5 |
2.5 |
1.5 |
2.5 |
1.5 |
2.5 |
1.5 |
2.5 |
1.5 |
2.5 |
1.5 |
2.5 |
|
Apparent porosity/% ≤ |
15 |
16 |
15 |
16 |
15 |
16 |
15 |
16 |
15 |
16 |
15 |
16 |
|
Bulk density g/cm3 ≥ |
3.38 |
3.38 |
3.33 |
3.33 |
3.30 |
3.30 |
3.25 |
3.25 |
3.20 |
3.20 |
3.20 |
3.20 |
|
CCS /MPa ≥ |
50 |
50 |
50 |
50 |
50 |
50 |
50 |
50 |
50 |
50 |
50 |
50 |
|
0.2MPa refractoriness under load ≥ |
1700 |
1700 |
1700 |
1700 |
1700 |
1700 |
1700 |
1700 |
1700 |
1700 |
1700 |
1700 |
