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2024 Aluminum vs. High-alumina Refractory

2024 aluminum and high-alumina refractory belong to fundamentally different material chemistries. 2024 aluminum is a metal, while high-alumina refractory is a ceramic material. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 6 material properties with values for both materials. Properties with values for just one material (27, in this case) are not shown.

For each property being compared, the top bar is 2024 aluminum and the bottom bar is high-alumina refractory.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 3.0
2.1
Maximum Temperature: Mechanical, °C 200
1200
Specific Heat Capacity, J/kg-K 880
800
Thermal Conductivity, W/m-K 120
1.5
Thermal Diffusivity, mm2/s 46
0.87
Thermal Expansion, µm/m-K 23
4.3