// SPEC · Refractory Bricks
High Alumina Brick Al2O3 70%
High Alumina Brick Al2O3 70% provides premium refractoriness to 1600°C and low porosity for electric arc furnace sidewalls, copper converters, and non-ferrous metal smelting furnace linings.
// Key Features
- Low apparent porosity ≤20% for superior slag infiltration resistance
- High refractoriness under load ≥1450°C for premium steel and nonferrous service
- Excellent thermal shock resistance in rapid-cycling heating environments
- Effective resistance to aggressive non-ferrous slags and oxide melts
// Technical Specifications
| Al2O3 (%) | ≥70 |
| Fe2O3 (%) | ≤1.5 |
| Apparent Porosity (%) | ≤20 |
| Cold Crushing Strength (MPa) | ≥60 |
| Refractoriness Under Load (°C) | ≥1450 |
// Applications
Electric arc furnace sidewall working liningCopper converter tuyere zoneNon-ferrous metal smelting reverberatory furnaceLead and zinc smelting furnace liningSteel continuous casting tundish permanent lining
// Quick Specs
Max Temperature1600°C
Thermal Conductivity1.8 W/(m·K) at 1000°C
Density2.60 g/cm³
StandardGB/T 2988
// Get Pricing
WhatsApp Us