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SAE-AISI 4150 Steel vs. High-silica Glass

SAE-AISI 4150 steel and high-silica glass belong to fundamentally different material chemistries. SAE-AISI 4150 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 (33, 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 SAE-AISI 4150 steel and the bottom bar is high-silica glass.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 7.8
2.4
Elastic (Young's, Tensile) Modulus, GPa 190
78
Stiffness to Weight: Axial, points 13
19
Stiffness to Weight: Bending, points 24
61
Thermal Expansion, µm/m-K 13
0.6 to 0.75