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ACI-ASTM CA40 Steel vs. High-silica Glass

ACI-ASTM CA40 steel and high-silica glass belong to fundamentally different material chemistries. ACI-ASTM CA40 steel is a metal, while high-silica glass is a ceramic material. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 5 material properties with values for both materials. Properties with values for just one material (34, 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 ACI-ASTM CA40 steel and the bottom bar is high-silica glass.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 7.7
2.4
Elastic (Young's, Tensile) Modulus, GPa 190
78
Stiffness to Weight: Axial, points 14
19
Stiffness to Weight: Bending, points 25
61
Thermal Expansion, µm/m-K 10
0.6 to 0.75