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ASTM B631 Class B vs. Titanium 6-7

ASTM B631 class B belongs to the otherwise unclassified metals classification, while titanium 6-7 belongs to the titanium alloys. There are 12 material properties with values for both materials. Properties with values for just one material (20, 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 ASTM B631 class B and the bottom bar is titanium 6-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
120
Poisson's Ratio 0.31
0.33
Shear Modulus, GPa 78 to 79
45

Thermal Properties

Latent Heat of Fusion, J/g 150
410
Melting Completion (Liquidus), °C 2460 to 2480
1700
Specific Heat Capacity, J/kg-K 170
520
Thermal Expansion, µm/m-K 12
9.3

Otherwise Unclassified Properties

Density, g/cm3 14
5.1
Embodied Carbon, kg CO2/kg material 49
34
Embodied Energy, MJ/kg 760
540

Common Calculations

Stiffness to Weight: Axial, points 8.1
13
Stiffness to Weight: Bending, points 14
32