Fire Clay Brick is a traditional shaped refractory product sintered from fire clay raw materials. It belongs to low-alumina aluminosilicate refractory brick with stable moderate-temperature performance and cost-effective price.
Key Features：
- Good thermal shock resistance under medium temperature working conditions.
- Low thermal conductivity, good heat insulation performance.
- Stable volume at working temperature, moderate slag resistance.
- Economical refractory material for general high-temperature kilns.
- Easy cutting and installation during furnace construction.
Available Grades：
Grade N-1: Al₂O₃ ≥30%
Grade N-2: Al₂O₃ ≥28%
Grade N-3: Al₂O₃ ≥25%
Main Applications：
- Lining of low & medium temperature industrial furnaces, heating furnaces, boiler linings.
- Chimney, flue, tunnel kiln car lining, heat preservation layer of kilns.
- Backing lining behind high-grade refractory bricks for thermal insulation.
- Small metal melting furnaces and waste heat equipment.
Available Sizes & Packing：
Standard size: 230×114×65 mm; 230×114×75 mm, custom special shapes available.
COA certificate provided per batch.
Specification:
Chemical Composition | N-1 | N-2 | N-3 |
Al₂O₃ | 30% min | 28% min | 25% min |
Fe₂O₃ | 2.5% max | 3.0% max | 3.5% max |
Refractoriness | 1650℃ | 1630℃ | 1580℃ |
Apparent Porosity | 24% max | 24% max | 26% max |
*Specifications and Sizes can be customized upon request.
Available Sizes & Packing：
Standard size: 230×114×65 mm; 230×114×75 mm, custom special shapes available.
COA certificate provided per batch.