SYMULOX M 72
SYMULOX M 72
SYMULOX® M 72 is a synthetic sintered Mullite. It is used as a high quality raw material in a wide range of refractory applications. The homogeneous phase constitution and very low amount of impurities offer considerable advantages over naturally occurring alumosilicates. The synthesized Mullite product shows very good chemical uniformity, high refractory properties and excellent high temperature stability.
The constant high quality of SYMULOX M 72 is based on a careful selection and quality control of all raw materials. After pelletizing or briquette forming, the raw materials are sintered close to the melting temperature. A very homogeneous temperature distribution during the sintering process leads to constant high Mullite forming rates. After sintering, the pieces are crushed, milled and fractionized.
M 72 Standard Grain Size
K1: 0 – 0.5 mm
K2: 0.5 – 1.5 mm
K3: 1.5 – 3.0 mm
K4: 3.0 – 5.0 mm
Pellets: > 8.0 mm
M 72 Fine Grain Sizes
K0 C: 3 – 5 µm
K0: 7 – 15 µm
K0 course: 15 – 30 µm
Applications for SYMULOX M 72
- Investment casting mould
- Casting products
- Kiln furniture
- Thin-walled HT-ceramics
- Microfiller
- Refractory products, (un)shaped
- Gunning mix
- Refractory castables
- Precast refractories
- Catalyst carriers
- Friction linings
Features & Benefits
- Thermal shock resistance
- Adjustable porosity
- Refractory
- Defined grain size distribution
Properties
| Chemical Composition | Unit | M 72 |
|---|---|---|
| Al2O3 | % | 72 |
| SiO2 | % | 26 |
| Fe2O3 | % | 0.3 |
| TiO2 | % | 0.2 |
| CaO | % | 0.05 |
| MgO | % | 0.1 |
| Na2O | % | 0.2 |
| K2O | % | 0.6 |
| Mineralogical Composition | ||
| Mullite | % | 90 - 95 |
| Glassy Phase | % | 5 - 10 |
| Corundum | % | ~ 1 |
| Physical Properties (measured on pellets) | ||
| Bulk Density | g/cm3 | 2.8 |
| Open Porosity | % | 1.5 |
| Water Absorption | % | 1 |
| Specific Density | g/cm3 | 3.13 |
| Total Porosity | % | 9 |
