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Soda-lime Glass vs. Austenitic Nodular Cast Iron

Soda-lime glass and austenitic nodular cast iron belong to fundamentally different material chemistries. Soda-lime glass is a ceramic material, while austenitic nodular cast iron is a metal. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 12 material properties with values for both materials. Properties with values for just one material (20, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is soda-lime glass and the bottom bar is austenitic nodular cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70 to 71
180 to 190
Poisson's Ratio 0.23
0.29 to 0.3
Shear Modulus, GPa 29
70 to 72
Tensile Strength: Ultimate (UTS), MPa 41 to 180
430 to 500

Thermal Properties

Specific Heat Capacity, J/kg-K 720 to 800
470 to 490
Thermal Expansion, µm/m-K 8.8 to 9.0
13 to 14

Otherwise Unclassified Properties

Density, g/cm3 2.4
7.7 to 8.0

Common Calculations

Stiffness to Weight: Axial, points 16
13
Stiffness to Weight: Bending, points 56
24 to 25
Strength to Weight: Axial, points 4.6 to 20
15 to 18
Strength to Weight: Bending, points 11 to 28
16 to 18
Thermal Shock Resistance, points 4.7 to 20
12 to 15

Comparable Variants