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ASTM B631 Class B vs. EN-MC95310 Magnesium

ASTM B631 class B belongs to the otherwise unclassified metals classification, while EN-MC95310 magnesium belongs to the magnesium alloys. There are 16 material properties with values for both materials. Properties with values for just one material (16, 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 EN-MC95310 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
45
Poisson's Ratio 0.31
0.29
Shear Modulus, GPa 78 to 79
17

Thermal Properties

Latent Heat of Fusion, J/g 150
330
Melting Completion (Liquidus), °C 2460 to 2480
650
Specific Heat Capacity, J/kg-K 170
960
Thermal Conductivity, W/m-K 450
51
Thermal Expansion, µm/m-K 12
25

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 50 to 53
11
Electrical Conductivity: Equal Weight (Specific), % IACS 32 to 34
50

Otherwise Unclassified Properties

Density, g/cm3 14
1.9
Embodied Carbon, kg CO2/kg material 49
29
Embodied Energy, MJ/kg 760
260

Common Calculations

Stiffness to Weight: Axial, points 8.1
13
Stiffness to Weight: Bending, points 14
61
Thermal Diffusivity, mm2/s 190
28