| 转炉与精炼炉用砖 |
| 性能 |
镁碳砖(MT-) |
镁钙碳砖 |
镁钙砖(MCa-) |
| 10A |
10B |
10C |
14A |
14B |
14C |
18A |
18B |
18C |
70 |
75 |
80 |
| MgO% |
80 |
78 |
76 |
74 |
72 |
70 |
58-70 |
70 |
75 |
80 |
| CaO% |
|
|
|
|
|
|
|
|
|
10-15 |
20 |
15 |
10 |
| C% |
10 |
14 |
18 |
10-18 |
|
|
|
杂质总量%
|
|
|
|
|
|
|
|
|
|
4 |
4 |
|
显气孔率%
|
4 |
5 |
6 |
4 |
5 |
6 |
3 |
4 |
5 |
|
3 |
|
| 体积密度B g/cm3 |
2.9 |
2.85 |
2.80 |
2.90 |
2.82 |
2.77 |
2.90 |
2.82 |
2.77 |
2.80 |
3.05 |
|
| 常温耐压强度 Mpa |
40 |
35 |
30 |
40 |
35 |
25 |
40 |
35 |
35 |
25 |
70 |
|
| 0.2MPa荷重软化点 (KD)℃ |
|
|
|
|
|
|
|
|
|
|
1700 |
|
| 高温抗折强度1400℃×30min
MPA |
6 |
5 |
4 |
12 |
8 |
5 |
10 |
7 |
|
6 |
|
|
|
|