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EN AC-21100 Aluminum vs. ASTM B628 Ag-Cu

EN AC-21100 aluminum belongs to the aluminum alloys classification, while ASTM B628 Ag-Cu belongs to the otherwise unclassified metals. There are 18 material properties with values for both materials. Properties with values for just one material (13, 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 ASTM B628 Ag-Cu.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
83
Elongation at Break, % 6.2 to 7.3
1.1 to 17
Poisson's Ratio 0.33
0.36
Shear Modulus, GPa 27
31
Tensile Strength: Ultimate (UTS), MPa 340 to 350
350 to 760

Thermal Properties

Latent Heat of Fusion, J/g 390
140
Melting Completion (Liquidus), °C 670
780
Melting Onset (Solidus), °C 550
780
Specific Heat Capacity, J/kg-K 880
280
Thermal Expansion, µm/m-K 23
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 34
84
Electrical Conductivity: Equal Weight (Specific), % IACS 100
75

Otherwise Unclassified Properties

Density, g/cm3 3.0
10

Common Calculations

Stiffness to Weight: Axial, points 13
4.6
Stiffness to Weight: Bending, points 46
14
Strength to Weight: Axial, points 31 to 33
9.5 to 21
Strength to Weight: Bending, points 36 to 37
11 to 18
Thermal Shock Resistance, points 15
16 to 34

Alloy Composition

Aluminum (Al), % 93.4 to 95.7
0 to 0.0050
Cadmium (Cd), % 0
0 to 0.050
Copper (Cu), % 4.2 to 5.2
26.6 to 29
Iron (Fe), % 0 to 0.19
0 to 0.050
Lead (Pb), % 0
0 to 0.030
Manganese (Mn), % 0 to 0.55
0
Nickel (Ni), % 0
0 to 0.010
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.18
0
Silver (Ag), % 0
71 to 73
Titanium (Ti), % 0.15 to 0.3
0
Zinc (Zn), % 0 to 0.070
0 to 0.060
Residuals, % 0
0 to 0.21