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AISI 304 Stainless Steel vs. Alpha Quartz

AISI 304 stainless steel and alpha quartz belong to fundamentally different material chemistries. AISI 304 stainless steel is a metal, while alpha quartz is a ceramic material. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 11 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 AISI 304 stainless steel and the bottom bar is alpha quartz.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
91
Poisson's Ratio 0.28
0.13
Shear Modulus, GPa 77
31

Thermal Properties

Melting Onset (Solidus), °C 1400
1590
Specific Heat Capacity, J/kg-K 480
720
Thermal Conductivity, W/m-K 16
8.5
Thermal Expansion, µm/m-K 17
9.5

Otherwise Unclassified Properties

Density, g/cm3 7.8
2.7

Common Calculations

Stiffness to Weight: Axial, points 14
19
Stiffness to Weight: Bending, points 25
57
Thermal Diffusivity, mm2/s 4.2
4.4