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EN AC-21100 Aluminum vs. AWS BVAu-7

EN AC-21100 aluminum belongs to the aluminum alloys classification, while AWS BVAu-7 belongs to the otherwise unclassified metals. There are 15 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 EN AC-21100 aluminum and the bottom bar is AWS BVAu-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
130
Poisson's Ratio 0.33
0.38
Shear Modulus, GPa 27
45
Tensile Strength: Ultimate (UTS), MPa 340 to 350
200

Thermal Properties

Latent Heat of Fusion, J/g 390
140
Melting Completion (Liquidus), °C 670
1120
Melting Onset (Solidus), °C 550
1100
Specific Heat Capacity, J/kg-K 880
240
Thermal Expansion, µm/m-K 23
13

Otherwise Unclassified Properties

Density, g/cm3 3.0
15

Common Calculations

Stiffness to Weight: Axial, points 13
4.7
Stiffness to Weight: Bending, points 46
11
Strength to Weight: Axial, points 31 to 33
3.7
Strength to Weight: Bending, points 36 to 37
5.1
Thermal Shock Resistance, points 15
8.9

Alloy Composition

Aluminum (Al), % 93.4 to 95.7
0
Cadmium (Cd), % 0
0 to 0.0010
Carbon (C), % 0
0 to 0.0050
Cobalt (Co), % 0
0 to 0.060
Copper (Cu), % 4.2 to 5.2
0
Gold (Au), % 0
49.5 to 50.5
Iron (Fe), % 0 to 0.19
0
Lead (Pb), % 0
0 to 0.0020
Manganese (Mn), % 0 to 0.55
0
Nickel (Ni), % 0
24.5 to 25.5
Palladium (Pd), % 0
23.9 to 26
Phosphorus (P), % 0
0 to 0.0020
Silicon (Si), % 0 to 0.18
0
Titanium (Ti), % 0.15 to 0.3
0
Zinc (Zn), % 0 to 0.070
0 to 0.0010
Residuals, % 0 to 0.1
0