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Fused Silica vs. SAE-AISI 1010 Steel

Fused silica and SAE-AISI 1010 steel belong to fundamentally different material chemistries. Fused silica is a ceramic material, while SAE-AISI 1010 steel is a metal. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 16 material properties with values for both materials. Properties with values for just one material (26, 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 fused silica and the bottom bar is SAE-AISI 1010 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
190
Poisson's Ratio 0.17
0.29
Shear Modulus, GPa 31
73
Tensile Strength: Ultimate (UTS), MPa 50
350 to 400

Thermal Properties

Maximum Temperature: Mechanical, °C 1080
400
Melting Onset (Solidus), °C 1900
1430
Specific Heat Capacity, J/kg-K 720
470
Thermal Conductivity, W/m-K 1.4
47
Thermal Expansion, µm/m-K 0.5
12

Otherwise Unclassified Properties

Density, g/cm3 2.2
7.9

Common Calculations

Stiffness to Weight: Axial, points 18
13
Stiffness to Weight: Bending, points 63
24
Strength to Weight: Axial, points 6.3
12 to 14
Strength to Weight: Bending, points 14
14 to 15
Thermal Diffusivity, mm2/s 0.85
13
Thermal Shock Resistance, points 97
11 to 13