Brown Fused Alumina for Refractory Applications
High-alumina aggregate for castables, bricks, and monolithic linings in extreme temperature environments.
Why Use BFA in Refractory Materials?
Brown fused alumina (BFA) is a preferred aggregate in high-performance refractory systems due to its exceptional hardness, thermal stability, and chemical resistance. It maintains structural integrity and insulation capacity in harsh furnace environments, making it ideal for both shaped and unshaped refractories.
- Al₂O₃ content ≥ 95% for excellent refractoriness
- Stable above 1800°C with low thermal expansion
- Superior slag and abrasion resistance
Common Refractory Applications
- Monolithic castables and gunning mixes
- Precast refractory blocks and fire bricks
- Electric arc furnace linings and tundish covers
- Cement kiln noses, rotary furnace hoods, and burner throats
BFA is compatible with alumina, magnesia, and spinel matrix systems for improved thermal shock and mechanical strength.
Recommended Particle Sizes
- Unshaped refractories: 0–1 mm, 1–3 mm, 3–5 mm
- Matrix powders for bonding phase: F60–F180
- Ultra-fine fillers: F220–F600 for low-cement castables
All grades available with customized PSD, bulk density, and thermal conductivity per application needs.
Request a Material Specification