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ASTM B628 Ag-Cu vs. EN AC-44400 Aluminum

ASTM B628 Ag-Cu belongs to the otherwise unclassified metals classification, while EN AC-44400 aluminum belongs to the aluminum alloys. 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 ASTM B628 Ag-Cu and the bottom bar is EN AC-44400 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 83
71
Elongation at Break, % 1.1 to 17
4.1
Poisson's Ratio 0.36
0.33
Shear Modulus, GPa 31
27
Tensile Strength: Ultimate (UTS), MPa 350 to 760
210

Thermal Properties

Latent Heat of Fusion, J/g 140
540
Melting Completion (Liquidus), °C 780
600
Melting Onset (Solidus), °C 780
590
Specific Heat Capacity, J/kg-K 280
900
Thermal Expansion, µm/m-K 19
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 84
33
Electrical Conductivity: Equal Weight (Specific), % IACS 75
110

Otherwise Unclassified Properties

Density, g/cm3 10
2.6

Common Calculations

Stiffness to Weight: Axial, points 4.6
15
Stiffness to Weight: Bending, points 14
54
Strength to Weight: Axial, points 9.5 to 21
23
Strength to Weight: Bending, points 11 to 18
31
Thermal Shock Resistance, points 16 to 34
9.8

Alloy Composition


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Aluminum (Al), % 0 to 0.0050
87.1 to 92
Cadmium (Cd), % 0 to 0.050
0
Copper (Cu), % 26.6 to 29
0 to 0.1
Iron (Fe), % 0 to 0.050
0 to 0.65
Lead (Pb), % 0 to 0.030
0 to 0.050
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 0
0 to 0.5
Nickel (Ni), % 0 to 0.010
0 to 0.050
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0
8.0 to 11
Silver (Ag), % 71 to 73
0
Tin (Sn), % 0
0 to 0.050
Titanium (Ti), % 0
0 to 0.15
Zinc (Zn), % 0 to 0.060
0 to 0.15
Residuals, % 0 to 0.21
0 to 0.15