Grade | Standard | High Pure | High Aluminium | Zirconium | |||
Max. Temperature (℃) | 1050 | 1150 | 1260 | 1430 | |||
Shrinkage on Heating (%) | 800℃×24h≤-3 | 1000℃×24h≤-3 | 1280℃×24h≤-3 | 1400℃×24h≤-3 | |||
Organic Content (%) | ≤5 | ≤5 | ≤5 | ≤5 | |||
Thermal conductivity by mean temp. (W/m.k.) (250kg/m3) | 200℃ | 0.055~0.065 | 0.060~0.070 | ||||
400℃ | 0.110~0.120 | 0.105~0.125 | |||||
600℃ | 0.160~0.170 | 0.170~0.180 | |||||
Chemical Composition (%) | AL2O3 | ||||||
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