SK-32 / SK-35Silicon carbide refractories
NSIC80 / OSIC90Silicon carbide brick
Wear-resistant SiC brick with high hot strength, conductivity, thermal-shock resistance and low expansion.
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PRODUCT / NSIC80 / OSIC9001 / APPLICATION
Application and operating zones
Copper and aluminium furnaces, incinerators, ceramic kilns and kiln furniture.
02 / TYPICAL DATA
Technical specifications
PropertyTypical value
SiC76-90%
Cold crushing strength80-130 MPa
Thermal conductivity14-18 W/mK
GRADE COMPARISON
Grades and technical properties
For each shipment, composition, geometry, and guaranteed properties are fixed in the specification and batch quality certificate.
| Grade | SiC | Si₃N₄ | Fe₂O₃ | Bulk density | Apparent porosity | Cold crushing strength | RUL @ 0.2 MPa | Thermal conductivity |
|---|---|---|---|---|---|---|---|---|
| NSIC80 | 76% | 20% | 0.3% | 2.65 g/cm³ | 16% | 130 MPa | 1700°C | 18 W/mK |
| OSIC90 | 90% | - | 0.8% | 2.50 g/cm³ | 17% | 100 MPa | 1650°C | 15 W/mK |
| OSIC80 | 80% | - | 1.0% | 2.40 g/cm³ | 18% | 80 MPa | 1550°C | 14 W/mK |
Properties are shown as typical values. The operating grade and guaranteed values are selected for the service conditions and fixed in the supply specification.
