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Refractory Materials for the Tapping Hole and Slagging Channel of Blast Furnace
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Items |
Main channel materials |
Main channel tapping materials |
Main channel slagging materials |
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YH-TGJ1 |
YH-TGJ2 |
YH-TGJ3 |
YH-TGJ4 |
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AL2O3 % ≥ |
65 |
70 |
72-78 |
58-60 |
|
|
SiC+C % ≥ |
15 |
12 |
12-20 |
15-35 |
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|
BD g/cm3 °C |
110°C x 24h |
2.7 |
2.8 |
2.9 |
2.8 |
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MOR MPa °C ≥ |
110°C x24h |
4.0 |
2.5 |
6.0 |
6.0 |
|
1450 °C x 3h |
5.0 |
5.0 |
6.5 |
6.5 |
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|
CCS MPa ≥ |
110°C x 24h |
15 |
25 |
25 |
25 |
|
1450°C x 3h |
30 |
50 |
30 |
30 |
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|
Linear dimensional change %dimensional chanqe |
1450°C x3h |
±0.5 |
±0.5 |
±0.5 |
±0.5 |
