Magnesia Carbon Brick
Magnesia carbon brick series used for the electric furnace are made by adoption of fused magnetite, high-purity magnesium sand and graphite as principal raw material, through high-pressure molding and low-temperature treatment. This product is mainly used for electric furnace lining, which enjoys advantages including high temperature resistance strength, corrosion and spalling resistance. According to the smelting conditions and the kind of smelting steel, different brands magnesia carbon bricks are available.
Physical and chemical indexes (1)
|
Brand |
MT-12A |
MT-12B |
MT-12C |
MT-14A |
MT-14B |
MT-14C |
|
|
Chemical Composition/%,≥ |
MgO |
78 |
76 |
74 |
76 |
74 |
72 |
|
C |
12 |
12 |
12 |
14 |
14 |
14 |
|
|
Apparent porosity/%,≤ |
4 |
5 |
6 |
4 |
5 |
6 |
|
|
Bulk density,≥ g/cm3 |
2.98 |
2.96 |
2.95 |
2.98 |
2.96 |
2.95 |
|
|
Crushing strength,≥ /Mpa |
40 |
40 |
35 |
40 |
40 |
35 |
|
|
Hot modulus of rupture,≥ (1450℃) /Mpa |
8 |
7 |
6 |
12 |
10 |
8 |
|
Physical and chemical indexes (2)
|
Brand |
MT-16A |
MT-16B |
MT-16C |
MT-18A |
MT-18B |
MT-18C |
|
|
Chemical Composition/%,≥ |
MgO |
74 |
72 |
72 |
72 |
70 |
70 |
|
C |
16 |
16 |
16 |
18 |
18 |
18 |
|
|
Apparent porosity/%,≤ |
4 |
5 |
5 |
3 |
4 |
5 |
|
|
Bulk density,≥ g/cm3 |
2.93 |
2.90 |
2.90 |
2.90 |
2.88 |
2.85 |
|
|
Crushing strength,≥ Mpa |
40 |
35 |
30 |
40 |
35 |
30 |
|
|
Hot modulus of rupture,≥ (1450℃) /Mpa |
11 |
8 |
5 |
10 |
7 |
4 |
|
Contact : julie Cao, 0086 18235597356
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