MakeItFrom.com
Menu (ESC)
Home>Glass and Glass-CeramicUp Two>Borosilicate GlassUp One

Borosilicate Glass vs. SAE-AISI 1078 Steel

Borosilicate glass and SAE-AISI 1078 steel belong to fundamentally different material chemistries. Borosilicate glass is a ceramic material, while SAE-AISI 1078 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 (30, 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 SAE-AISI 1078 steel.

Borosilicate GlassSAE-AISI 1078 (G10780) Carbon Steel
Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 67 to 80
190
Poisson's Ratio 0.21
0.29
Tensile Strength: Ultimate (UTS), MPa 280
730 to 780

Thermal Properties

Maximum Temperature: Mechanical, °C 360
400
Melting Onset (Solidus), °C 560
1420
Specific Heat Capacity, J/kg-K 830
470
Thermal Conductivity, W/m-K 1.2
49
Thermal Expansion, µm/m-K 3.3 to 5.1
11

Otherwise Unclassified Properties

Density, g/cm3 2.2 to 2.6
7.8

Common Calculations

Stiffness to Weight: Axial, points 15 to 17
13
Stiffness to Weight: Bending, points 55 to 61
24
Strength to Weight: Axial, points 30 to 35
26 to 28
Strength to Weight: Bending, points 36 to 43
23 to 24
Thermal Diffusivity, mm2/s 0.54 to 0.63
13
Thermal Shock Resistance, points 50 to 91
25 to 26