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Granite

Granite is a type of common industrial natural stone. It has the highest thermal conductivity among the natural stone materials in the database. The graph bars on the material properties cards below compare granite to other natural stone materials (top) and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.

Mechanical Properties

Compressive (Crushing) Strength

2200 MPa 320 x 103 psi

Elastic (Young's, Tensile) Modulus

70 GPa 10 x 106 psi

Flexural Strength

24 MPa 3.5 x 103 psi

Poisson's Ratio

0.25

Shear Modulus

27 GPa 3.9 x 106 psi

Tensile Strength: Ultimate (UTS)

39 MPa 5.7 x 103 psi

Thermal Properties

Specific Heat Capacity

840 J/kg-K 0.2 BTU/lb-°F

Thermal Conductivity

48 W/m-K 28 BTU/h-ft-°F

Thermal Expansion

7.4 µm/m-K

Other Material Properties

Density

2.9 g/cm3 180 lb/ft3

Dielectric Strength (Breakdown Potential)

8.5 kV/mm 0.33 V/mil

Common Calculations

Stiffness to Weight: Axial

14 points

Stiffness to Weight: Bending

48 points

Strength to Weight: Axial

3.8 points

Strength to Weight: Bending

9.0 points

Thermal Diffusivity

20 m2/s

Thermal Shock Resistance

5.4 points

Followup Questions