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Barium Fluoride vs. SAE-AISI 4150 Steel

Barium fluoride and SAE-AISI 4150 steel belong to fundamentally different material chemistries. Barium fluoride is a ceramic material, while SAE-AISI 4150 steel is a metal. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 11 material properties with values for both materials. Properties with values for just one material (23, in this case) are not shown.

For each property being compared, the top bar is barium fluoride and the bottom bar is SAE-AISI 4150 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 60
190
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 25
73

Thermal Properties

Melting Onset (Solidus), °C 1370
1420
Specific Heat Capacity, J/kg-K 420
470
Thermal Conductivity, W/m-K 9.0
42
Thermal Expansion, µm/m-K 18
13

Otherwise Unclassified Properties

Density, g/cm3 4.9
7.8

Common Calculations

Stiffness to Weight: Axial, points 6.8
13
Stiffness to Weight: Bending, points 27
24
Thermal Diffusivity, mm2/s 4.4
11