Type | Mullite Board | High Alumina PCW Board | Alumina PCW Board | |||
Code | LH-11 | LH-12 | LH-13 | |||
Color | White | White | White | |||
Working Temperature(℃) | 1350℃ 2462℉ | 1400℃ 2552℉ | 1450℃ 2642℉ | |||
Specific Gravity, Kg/cm3 | 100-120 | 100-120 | 100-120 | |||
Fibre Diameter, *mean, micron | 3-5 | 3-5 | 3-5 | |||
Linear Shrinkage(%) 1400℃/2552℉*24h | 1.5 | 1 | 1 | |||
Chemical Composition(%) | ||||||
Al2O3 | ≥72 | ≥82 | ≥93 | |||
Al2O3+SiO2 | ≥99 | ≥99 | ≥99 | |||
Fe2O3 | ≤0.2 | ≤0.2 | ≤0.2 | |||
K2O+Na2O | ≤0.1 | ≤0.1 | ≤0.1 |