SK-32 / SK-35Fused cast refractories
AZS-33 / AZS-41Fused cast AZS block
Fused-cast block made from high-purity alumina and zircon sand with high density, purity and strength.
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PRODUCT / AZS-33 / AZS-4101 / APPLICATION
Application and operating zones
Working lining of glass-melting furnaces.
02 / TYPICAL DATA
Technical specifications
PropertyTypical value
ZrO₂32-40%
Cold crushing strength350 MPa
RUL @ 0.2 MPa1700°C
GRADE COMPARISON
Grades and technical properties
For each shipment, composition, geometry, and guaranteed properties are fixed in the specification and batch quality certificate.
| Grade | ZrO₂ | SiO₂ | Na₂O | Fe₂O₃ | Bulk density (regular cast) | Bulk density (void-free) | Apparent porosity | Cold crushing strength | RUL @ 0.2 MPa |
|---|---|---|---|---|---|---|---|---|---|
| AZS-41 | 40% | 13.0% | 1.3% | 0.10% | 3.55 g/cm³ | 4.00 g/cm³ | 1.3% | 350 MPa | 1700°C |
| AZS-36 | 35% | 14.0% | 1.4% | 0.10% | 3.45 g/cm³ | 3.78 g/cm³ | 1.5% | 350 MPa | 1700°C |
| AZS-33 | 32% | 15.5% | 1.5% | 0.10% | 3.40 g/cm³ | 3.70 g/cm³ | 2.0% | 350 MPa | 1700°C |
Properties are shown as typical values. The operating grade and guaranteed values are selected for the service conditions and fixed in the supply specification.
