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JC castables are widely applied in blast furnace ,bottom of hot stove,throat brick various tubes and others.
|
Items
|
JCN-130
Fire clay
|
JCN-45
Fire clay
|
JCL-55
High-alumina
|
JCG-85
Corundum
|
JCGM-1
Corundum-mullite
|
Al2O3(%) |
≥40 |
≥45 |
≥55 |
≥80 |
≥70 |
|
Bulk density
(g/cm3)
|
≥1.8 |
≥2.0 |
≥2.2 |
≥2.7 |
≥2.5 |
Breaking strength (110?榴imes;24h MPa) |
≥4 |
≥4 |
≥5 |
≥8 |
≥2.6 |
Compressive strength (110?榴imes;24h MPa) |
≥15 |
≥20 |
≥30 |
≥50 |
≥5 |
Compressive strength (1000?榴imes;3h MPa) |
≥20 |
≥30 |
≥35 |
≥60 |
≥30 |
|
Linear change rate
(%)
|
±1.0 |
±0.5 |
±0.5 |
±0.5 |
±0.5 |
Areas service |
Bottom of blast furnace, burner and upper part of vertical wind pipe of fluid diversion |
The place between throat brick and shell of blast furnace, and pouring cooling wall |
The horizontal part of wind pipe of fluid diversion and the lower part of vertical one |
The upper part of wind room,packing tube of hot blast,branch wind pipe,tuyere and slag |
The upper part of burner and wind pipe of fluid diversion |