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Borosilicate Glass vs. C94400 Bronze

Borosilicate glass and C94400 bronze belong to fundamentally different material chemistries. Borosilicate glass is a ceramic material, while C94400 bronze 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 (27, 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 C94400 bronze.

Borosilicate GlassUNS C94400 Leaded Tin Bronze
Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 67 to 80
100
Poisson's Ratio 0.21
0.35
Tensile Strength: Ultimate (UTS), MPa 280
220

Thermal Properties

Maximum Temperature: Mechanical, °C 360
150
Melting Onset (Solidus), °C 560
790
Specific Heat Capacity, J/kg-K 830
350
Thermal Conductivity, W/m-K 1.2
52
Thermal Expansion, µm/m-K 3.3 to 5.1
19

Otherwise Unclassified Properties

Density, g/cm3 2.2 to 2.6
9.1

Common Calculations

Stiffness to Weight: Axial, points 15 to 17
6.1
Stiffness to Weight: Bending, points 55 to 61
17
Strength to Weight: Axial, points 30 to 35
6.8
Strength to Weight: Bending, points 36 to 43
9.0
Thermal Diffusivity, mm2/s 0.54 to 0.63
17
Thermal Shock Resistance, points 50 to 91
8.3