 |
Refractories for Electric Arc Furnaces/Continuous Casting Refractories
The list is illustrative and does not cover the full range of
products and some of the improved items which have been recently
developed.
| Electric Arc Furnace |
A |
B |
C |
D |
E |
| Al2O3 % |
60 |
60 |
70 |
0.5 |
N.A. |
| MgO % |
N.A. |
N.A. |
N.A. |
91 |
97 |
| FC % |
N.A. |
N.A. |
N.A. |
N.A. |
12 |
| B.D. (gm/cc) |
2.4 |
N.A. |
2.6 |
N.A. |
2.9 |
| A.P. % |
23 |
24 |
23 |
20 |
5 |
| CCS (kg/cm2) |
300 |
300 |
400 |
600 |
400 |
| RUL (ta °C) |
N.A. |
1450 |
N.A. |
1600 |
N.A. |
| PLC % |
±3.0 |
±3.0 |
±3.0 |
+0.5 |
N.A. |
| (at °C/2 hrs) |
1500 |
1500 |
1600 |
1600 |
N.A. |
| MOR (at 1400°C) (kg/cm2) |
N.A. |
N.A. |
N.A. |
N.A. |
30 |
| Continuous Casting Refractories |
A |
B |
C |
D |
E |
F |
G |
| Al2O3 % |
45 |
78 |
85 |
N.A. |
60 |
67 |
N.A. |
| C % |
35 |
17 |
3 |
N.A. |
10 |
27 |
20 |
| ZrO2 % |
N.A. |
N.A. |
N.A. |
95 |
N.A. |
N.A. |
70 |
| B.D. (gm/cc) |
2.40 |
2.72 |
3.10 |
4.80 |
2.40 |
2.54 |
3.40 |
| A.P. % |
13 |
12 |
6 |
10 |
24 |
16 |
14 |
| CCS (kg/cm2) |
205 |
285 |
800 |
1000 |
N.A. |
250 |
260 |
| MOR (at 1400°C) (kg/cm2) |
N.A. |
N.A. |
N.A. |
N.A. |
40 |
85 |
70 |
| Thermal expansion (at 1000°C) |
N.A. |
N.A. |
N.A. |
N.A. |
N.A. |
0.38 |
0.38 |
|
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