SK-32 / SK-35Shaped refractories
JC50 / SAL80Special alumina brick
Brick based on sillimanite, andalusite, mullite and corundum with strong resistance to melts, slag and thermal shock.
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PRODUCT / JC50 / SAL8001 / APPLICATION
Application and operating zones
Rotary and glass furnaces, hot-blast systems, regenerator chambers, non-ferrous furnaces and other high-temperature units.
02 / TYPICAL DATA
Technical specifications
PropertyTypical value
Al₂O₃50-80%
RUL @ 0.2 MPa1450-1670°C
Cold crushing strength80-120 MPa
GRADE COMPARISON
Grades and technical properties
For each shipment, composition, geometry, and guaranteed properties are fixed in the specification and batch quality certificate.
| Grade | Refractoriness (SK) | Apparent porosity | Bulk density | Cold crushing strength | RUL @ 0.2 MPa | Al₂O₃ | Fe₂O₃ |
|---|---|---|---|---|---|---|---|
| JC50 | 35 | 13% | 2.40 g/cm³ | 80 MPa | 1450°C | 50% | 1.5% |
| JA60E | 36 | 15% | 2.60 g/cm³ | 90 MPa | 1550°C | 60% | 1.3% |
| JA60 | 36 | 13% | 2.70 g/cm³ | 100 MPa | 1600°C | 65% | 1.3% |
| JA70 | 37 | 14% | 2.65 g/cm³ | 110 MPa | 1610°C | 70% | 1.3% |
| SAL75 | 38 | 18% | 2.65 g/cm³ | 120 MPa | 1650°C | 76% | 1.0% |
| SAL80 | 40 | 17% | 2.75 g/cm³ | 120 MPa | 1670°C | 80% | 0.8% |
Properties are shown as typical values. The operating grade and guaranteed values are selected for the service conditions and fixed in the supply specification.
