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Steatite vs. Granite

Steatite belongs to the oxide-based engineering ceramics classification, while granite belongs to the natural stone. There are 17 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is steatite and the bottom bar is granite.

Metric UnitsUS Customary Units

Mechanical Properties

Compressive (Crushing) Strength, MPa 540 to 620
2200
Elastic (Young's, Tensile) Modulus, GPa 68 to 120
70
Flexural Strength, MPa 32 to 150
24
Poisson's Ratio 0.23
0.25
Tensile Strength: Ultimate (UTS), MPa 60 to 220
39

Thermal Properties

Maximum Temperature: Mechanical, °C 750 to 1230
350
Specific Heat Capacity, J/kg-K 850 to 860
840
Thermal Conductivity, W/m-K 1.8 to 2.5
2.7
Thermal Expansion, µm/m-K 7.0 to 9.0
7.4

Electrical Properties

Dielectric Strength (Breakdown Potential), kV/mm 7.9 to 16
8.5

Otherwise Unclassified Properties

Density, g/cm3 1.9 to 2.8
2.9

Common Calculations

Stiffness to Weight: Axial, points 14 to 32
14
Stiffness to Weight: Bending, points 52 to 83
48
Strength to Weight: Axial, points 6.4 to 32
3.8
Strength to Weight: Bending, points 13 to 42
9.0
Thermal Diffusivity, mm2/s 0.79 to 1.1
1.1
Thermal Shock Resistance, points 5.1 to 33
5.4