Product Description
Description of Fused Mullite:
Fused mullite is a high-purity refractory material made by melting high-purity quartz sand and industrial alumina in an electric arc furnace at a certain ratio and then cooling it.
Fused mullite has the characteristics of well-developed needle-shaped crystals, high flexural strength, uniform expansion, good thermal shock stability, high load softening point, low high-temperature creep, high hardness, and good chemical corrosion resistance. RongSheng’s fused mullite can be customized according to customer requirements.
Application of Fused Mullite:
Fused Mullite is widely used in manufacturing many refractory products,like the low creep-rupture bricks for the hot-air stove,melting-iron groove or torpedo car,high-temperature industrial kiln,glass melting furnace,as well as in producing high-temperature saggers or shed planks,etc.
Technique Data of Fused Mullite:
| Item |
Unit |
Data |
| AL₂O₃ |
% |
72-77 |
| SiO₂ |
% |
23-29 |
| Fe₂O₃ |
% |
≤0.10 |
| R₂O |
% |
≤0.50 |
| RO |
% |
≤0.30 |
| Mullite Phase Content |
% |
≥95 |
| Glass Phase Content |
% |
≤5 |
| True Density |
g/cm³ |
≥3.2 |
| Refractoriness |
℃ |
≥1840 |
| Grain Size |
mm |
0-1,1-3,3-5 |
| Powder Size |
mesh |
-200,-325 |