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AWS BCo-1 vs. Borosilicate Glass

AWS BCo-1 and borosilicate glass belong to fundamentally different material chemistries. AWS BCo-1 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 12 material properties with values for both materials. Properties with values for just one material (23, 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 AWS BCo-1 and the bottom bar is borosilicate glass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
67 to 80
Poisson's Ratio 0.3
0.21
Tensile Strength: Ultimate (UTS), MPa 700
280

Thermal Properties

Melting Onset (Solidus), °C 1120
560
Specific Heat Capacity, J/kg-K 480
830
Thermal Expansion, µm/m-K 12
3.3 to 5.1

Otherwise Unclassified Properties

Density, g/cm3 8.1
2.2 to 2.6

Common Calculations

Stiffness to Weight: Axial, points 14
15 to 17
Stiffness to Weight: Bending, points 24
55 to 61
Strength to Weight: Axial, points 24
30 to 35
Strength to Weight: Bending, points 22
36 to 43
Thermal Shock Resistance, points 21
50 to 91