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Boron Carbide vs. Granite

Boron carbide belongs to the non-oxide engineering ceramics classification, while granite belongs to the natural stone. There are 16 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

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

Metric UnitsUS Customary Units

Mechanical Properties

Compressive (Crushing) Strength, MPa 1710 to 2200
2200
Elastic (Young's, Tensile) Modulus, GPa 240 to 460
70
Flexural Strength, MPa 170 to 410
24
Poisson's Ratio 0.17 to 0.19
0.25
Tensile Strength: Ultimate (UTS), MPa 350
39

Thermal Properties

Maximum Temperature: Mechanical, °C 1000 to 2500
350
Specific Heat Capacity, J/kg-K 950
840
Thermal Conductivity, W/m-K 31 to 90
2.7
Thermal Expansion, µm/m-K 4.5 to 5.6
7.4

Otherwise Unclassified Properties

Density, g/cm3 2.1 to 2.7
2.9

Common Calculations

Stiffness to Weight: Axial, points 63 to 100
14
Stiffness to Weight: Bending, points 91 to 100
48
Strength to Weight: Axial, points 37 to 47
3.8
Strength to Weight: Bending, points 42 to 53
9.0
Thermal Diffusivity, mm2/s 16 to 38
1.1
Thermal Shock Resistance, points 9.7 to 20
5.4