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Borosilicate Glass vs. ACI-ASTM CD3MWCuN Steel

Borosilicate glass and ACI-ASTM CD3MWCuN steel belong to fundamentally different material chemistries. Borosilicate glass is a ceramic material, while ACI-ASTM CD3MWCuN steel is a metal. 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 (29, 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 borosilicate glass and the bottom bar is ACI-ASTM CD3MWCuN steel.

Borosilicate GlassACI-ASTM CD3MWCuN (ASTM A890 Grade 6A, J93380) Cast Stainless Steel
Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 67 to 80
200
Poisson's Ratio 0.21
0.27
Tensile Strength: Ultimate (UTS), MPa 280
790

Thermal Properties

Maximum Temperature: Mechanical, °C 360
1100
Melting Onset (Solidus), °C 560
1410
Specific Heat Capacity, J/kg-K 830
470
Thermal Conductivity, W/m-K 1.2
16
Thermal Expansion, µm/m-K 3.3 to 5.1
13

Otherwise Unclassified Properties

Density, g/cm3 2.2 to 2.6
7.9

Common Calculations

Stiffness to Weight: Axial, points 15 to 17
14
Stiffness to Weight: Bending, points 55 to 61
25
Strength to Weight: Axial, points 30 to 35
28
Strength to Weight: Bending, points 36 to 43
24
Thermal Diffusivity, mm2/s 0.54 to 0.63
4.2
Thermal Shock Resistance, points 50 to 91
22