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ASTM B631 Class B vs. Grade 365 Molybdenum

Both ASTM B631 class B and grade 365 molybdenum are otherwise unclassified metals. There are 11 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

For each property being compared, the top bar is ASTM B631 class B and the bottom bar is grade 365 molybdenum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
310
Poisson's Ratio 0.31
0.31
Shear Modulus, GPa 78 to 79
120

Thermal Properties

Latent Heat of Fusion, J/g 150
370
Specific Heat Capacity, J/kg-K 170
250
Thermal Expansion, µm/m-K 12
7.0

Otherwise Unclassified Properties

Density, g/cm3 14
10
Embodied Carbon, kg CO2/kg material 49
28
Embodied Energy, MJ/kg 760
330

Common Calculations

Stiffness to Weight: Axial, points 8.1
17
Stiffness to Weight: Bending, points 14
22