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355.0 Aluminum vs. ASTM B631 Class B

355.0 aluminum belongs to the aluminum alloys classification, while ASTM B631 class B belongs to the otherwise unclassified metals. There are 16 material properties with values for both materials. Properties with values for just one material (17, 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 355.0 aluminum and the bottom bar is ASTM B631 class B.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
210
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 27
78 to 79

Thermal Properties

Latent Heat of Fusion, J/g 470
150
Melting Completion (Liquidus), °C 620
2460 to 2480
Specific Heat Capacity, J/kg-K 890
170
Thermal Conductivity, W/m-K 150 to 170
450
Thermal Expansion, µm/m-K 22
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 38 to 43
50 to 53
Electrical Conductivity: Equal Weight (Specific), % IACS 120 to 140
32 to 34

Otherwise Unclassified Properties

Density, g/cm3 2.7
14
Embodied Carbon, kg CO2/kg material 8.0
49
Embodied Energy, MJ/kg 150
760

Common Calculations

Stiffness to Weight: Axial, points 14
8.1
Stiffness to Weight: Bending, points 51
14
Thermal Diffusivity, mm2/s 60 to 69
190