| English | Korea | Japan | German | Spain |
 orientraw@yahoo.com.cn |
|
 tyler666888@hotmail.com |
 orientraw |
| Home | About us | Products | Contact us | E-mail us |
| Refractory Bricks-Silica Refractory Bricks For Coke Oven |
| Silica Refractory Bricks For Coke Oven |
 |
 |
 |
 |
 |
 |
Technical Data
| Item | bottom,wall | other |
| SiO2 %≥ | 94.5 | 94.5 |
| Al2O3 %≤ | 1.5 | 1.5 |
| Fe2O3 %≤ | 1.5 | 1.5 |
| CaO %≤ | 1.5 | 1.5 |
| Apparent porosity % ≤ | 22 | 24 |
| True density g/cm3 ≤ | 2.33 | 2.34 |
| Thermal expansion(1000℃)% ≤ | 1.28 | 1.30 |
| Linear change after reheating(1450℃×2h),% | 0~ +0.2 | 0 |
| 0.2mpa refractoriness under load ,℃≥ | 1650 | 1650 |
| Residual quartz % ≤ | 1.0 | 1.0 |