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ASTM B631 Class B vs. EN AC-46000 Aluminum

ASTM B631 class B belongs to the otherwise unclassified metals classification, while EN AC-46000 aluminum belongs to the aluminum alloys. There are 16 material properties with values for both materials. Properties with values for just one material (15, 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 AC-46000 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
73
Poisson's Ratio 0.31
0.33
Shear Modulus, GPa 78 to 79
28

Thermal Properties

Latent Heat of Fusion, J/g 150
530
Melting Completion (Liquidus), °C 2460 to 2480
620
Specific Heat Capacity, J/kg-K 170
880
Thermal Conductivity, W/m-K 450
100
Thermal Expansion, µm/m-K 12
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 50 to 53
26
Electrical Conductivity: Equal Weight (Specific), % IACS 32 to 34
82

Otherwise Unclassified Properties

Density, g/cm3 14
2.8
Embodied Carbon, kg CO2/kg material 49
7.6
Embodied Energy, MJ/kg 760
140

Common Calculations

Stiffness to Weight: Axial, points 8.1
14
Stiffness to Weight: Bending, points 14
49
Thermal Diffusivity, mm2/s 190
42