Detailed Product Description
The picture above shows the cordierite-mullite board that can be used at the temp 1300oC. The size is 500x500mm.
Double Egret is the leading manufacturer and exporter of insulation and refractory material in north of China. The products include cordierite-mullite products, refractory bricks, insulating bricks, ceramic fiber produts.
Cordierite-Mullite board is made of cordierite and mullite as raw material, sintering in high termp. Its refractoriness is higher than cordierite and thermal stability is better than mulliter material. Cordieriter-Mulliter board has low thermal expansion rate, good thermal shock resistance and long service life, mainly used in shuttle kilns of ceramics, glass, metallurgy, chemical industry etc.
Characteristic:
Low thermal expansion rate
Good thermal shock resistance
Long service life
Application:
Mainly used in shuttle kilns of ceramics, glass,
metallurgy, chemical industry etc.
Tech Data
| Item | Low-temperature Slab | High-temperature Slab | |
| Al2O3(%) | >36 | >38 | |
| MgO(%) | >8 | >4 | |
| Fe2O3(%) | <0.8 | <0.8 | |
| Bulk Density(g/cm3) | 1.7 | 1.9 | |
| Working Temperature(oC) | 1260 | 1320 | |
| Refractoriness | 1480 | 1580 | |
| Modulus of Rupture(Mpa) | Normal Temperature | 9 | 11 |
| High Temperature | 5 | 6 | |
| Porosity(%) | 30 | 26 | |
