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AISI 304 Stainless Steel vs. Borosilicate Glass

AISI 304 stainless steel and borosilicate glass belong to fundamentally different material chemistries. AISI 304 stainless steel is a metal, while borosilicate glass is a ceramic material. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 15 material properties with values for both materials. Properties with values for just one material (32, 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 borosilicate glass.

AISI 304 (S30400) Stainless SteelBorosilicate Glass
Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
67 to 80
Poisson's Ratio 0.28
0.21
Tensile Strength: Ultimate (UTS), MPa 580 to 1180
280

Thermal Properties

Maximum Temperature: Mechanical, °C 710
360
Melting Onset (Solidus), °C 1400
560
Specific Heat Capacity, J/kg-K 480
830
Thermal Conductivity, W/m-K 16
1.2
Thermal Expansion, µm/m-K 17
3.3 to 5.1

Otherwise Unclassified Properties

Density, g/cm3 7.8
2.2 to 2.6

Common Calculations

Stiffness to Weight: Axial, points 14
15 to 17
Stiffness to Weight: Bending, points 25
55 to 61
Strength to Weight: Axial, points 21 to 42
30 to 35
Strength to Weight: Bending, points 20 to 32
36 to 43
Thermal Diffusivity, mm2/s 4.2
0.54 to 0.63
Thermal Shock Resistance, points 12 to 25
50 to 91