Product: Mullite
Color: White/ Blue
Usage: Refractory material
Common Size: 0-1，1-3，3-5，5-8mm 40-70 mesh
Packing: 25/50 kg/ bag
Factory supply mullite sand / powder refractory material
Description
Mullite is a high-quality refractory raw material, and this type of mineral is relatively rare. Mullite is a mineral produced by aluminosilicates at high temperatures. Mullite is formed when aluminosilicates are artificially heated. Natural mullite crystals are slender, needle-like and radially clustered. Mullite is used to produce high-temperature refractories.
Advantages of Mullite
- High temperature resistance
- High strength
- Small thermal conductivity
- Significant energy saving effect
Application of Mullite
- Refractory material
- Ceramic manufacturing
- Casting etc.
Specification of Mullite
| Item/Grade | M45 | M47 | M60 | M70 |
| Al2O3 ( %,Min ) | 45 | 47 | 60 | 70 |
| Fe2O3 ( %,Max ) | 1.0 | 1.2 | 1.35 | 1.3 |
| SiO2 ( %, Max ) | 52 | 50 | 37 | 27 |
| TiO2 ( % ) | 0.8 | 1.0 | 1.8 | 0.8 |
| K2O ( % ) | 0.08 | 0.08 | 0.1 | 0.1 |
| Na2O ( % ) | 0.08 | 0.08 | 0.08 | 0.1 |
| MgO ( % ) | 0.1 | 0.1 | 0.1 | 0.1 |
| CaO ( % ) | 0.3 | 0.3 | 0.35 | 0.35 |
| Bulk density ( g/cm3 ) | 2.55 | 2.64 | 2.78 | 2.8 |
| Refractoriness deg.C Min | 1750 | 1790 | 1820 | 1850 |
| Apparent porosity ( % ) Max | 2.0 | 2.0 | 2.8 | 2.8 |
| Mullite ( % ) | 55 | 65 | 78 | 78 |
| Water absorption ( % ) Max | 3.0 | 3.0 | 3.0 | 3.0 |
