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EN AC-21100 Aluminum vs. AWS BAg-2a

EN AC-21100 aluminum belongs to the aluminum alloys classification, while AWS BAg-2a belongs to the otherwise unclassified metals. There are 17 material properties with values for both materials. Properties with values for just one material (14, 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 EN AC-21100 aluminum and the bottom bar is AWS BAg-2a.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
83
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 27
31
Tensile Strength: Ultimate (UTS), MPa 340 to 350
170

Thermal Properties

Latent Heat of Fusion, J/g 390
130
Melting Completion (Liquidus), °C 670
710
Melting Onset (Solidus), °C 550
610
Specific Heat Capacity, J/kg-K 880
310
Thermal Expansion, µm/m-K 23
23

Otherwise Unclassified Properties

Density, g/cm3 3.0
8.8
Embodied Carbon, kg CO2/kg material 8.0
30
Embodied Energy, MJ/kg 150
470

Common Calculations

Stiffness to Weight: Axial, points 13
5.2
Stiffness to Weight: Bending, points 46
17
Strength to Weight: Axial, points 31 to 33
5.4
Strength to Weight: Bending, points 36 to 37
7.8
Thermal Shock Resistance, points 15
6.5

Alloy Composition

Aluminum (Al), % 93.4 to 95.7
0
Cadmium (Cd), % 0
19 to 21
Copper (Cu), % 4.2 to 5.2
26 to 28
Iron (Fe), % 0 to 0.19
0
Manganese (Mn), % 0 to 0.55
0
Silicon (Si), % 0 to 0.18
0
Silver (Ag), % 0
29 to 31
Titanium (Ti), % 0.15 to 0.3
0
Zinc (Zn), % 0 to 0.070
21 to 25
Residuals, % 0
0 to 0.15