SK-32 / SK-35Shaped refractories
SK-36 / SK-40High alumina brick
Neutral high-alumina brick with high mechanical strength and resistance to slag, acids, alkalis and thermal spalling.
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PRODUCT / SK-36 / SK-4001 / APPLICATION
Application and operating zones
Cement and lime kilns, non-ferrous furnaces, incinerators, ladles and high-temperature industrial furnaces.
02 / TYPICAL DATA
Technical specifications
PropertyTypical value
Al₂O₃50-80%
RUL @ 0.2 MPa1420-1550°C
Cold crushing strength45-70 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 |
|---|---|---|---|---|---|---|---|
| SK-36 | 36 | 23% | 2.30 g/cm³ | 45 MPa | 1420°C | 50% | 2.0% |
| SK-37 | 37 | 23% | 2.35 g/cm³ | 50 MPa | 1450°C | 60% | 2.0% |
| SK-38 | 38 | 23% | 2.40 g/cm³ | 52 MPa | 1500°C | 72% | 2.0% |
| SK-40 | 40 | 20% | 2.65 g/cm³ | 70 MPa | 1550°C | 80% | 1.8% |
Properties are shown as typical values. The operating grade and guaranteed values are selected for the service conditions and fixed in the supply specification.
