| MOQ: | 1 |
| Price: | Negotiable |
| Standard Packaging: | Pallet |
| Delivery Period: | 10-15days |
| Payment Method: | L/C,D/P,T/T |
| Supply Capacity: | 5000tons per month |
Fire clay bricks are high-temperature refractory insulation bricks with weakly acidic properties, engineered for ovens, kilns, and other high-heat industrial environments. They combine reliable thermal insulation with long service life and versatile shaping options, making them one of the most widely used refractory materials across a broad range of kiln applications.
| Item | SK-30 | SK-32 | SK-34 | SK-36 |
|---|---|---|---|---|
| AL2O3 % (min) | 30–35% | 35–38% | 38–42% | 50–55% |
| Fe2O3 % (max) | 3 | 3 | 2.8 | 2.5 |
| Refractoriness | ≥1670°C | ≥1690°C | ≥1710°C | ≥1750°C |
| Refractoriness under load, 0.2MPa (°C) | ≥1270 | ≥1350 | ≥1350 | ≥1430 |
| Apparent porosity (%) | 20–24 | 20–24 | 19–23 | 18–22 |
| Bulk density (g/cm³) | 2.00–2.05 | 2.05–2.1 | 2.1–2.15 | 2.15–2.25 |
| Cold crushing strength (MPa) | ≥25 | ≥30 | ≥35 | ≥45 |
| Thermal expansion at 1000°C (%) | ≤0.6 | ≤0.55 | ≤0.55 | ≤0.4 |
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