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ASTM B685 Alloy vs. EN AC-47000 Aluminum

ASTM B685 alloy belongs to the otherwise unclassified metals classification, while EN AC-47000 aluminum belongs to the aluminum alloys. There are 17 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 B685 alloy and the bottom bar is EN AC-47000 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
73
Poisson's Ratio 0.37
0.33
Shear Modulus, GPa 43
27
Tensile Strength: Ultimate (UTS), MPa 660 to 1060
180

Thermal Properties

Latent Heat of Fusion, J/g 180
570
Melting Completion (Liquidus), °C 1230
590
Melting Onset (Solidus), °C 1200
570
Specific Heat Capacity, J/kg-K 300
900
Thermal Expansion, µm/m-K 14
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 5.0
33
Electrical Conductivity: Equal Weight (Specific), % IACS 4.1
110

Otherwise Unclassified Properties

Density, g/cm3 11
2.6

Common Calculations

Stiffness to Weight: Axial, points 6.1
16
Stiffness to Weight: Bending, points 15
54
Strength to Weight: Axial, points 17 to 27
19
Strength to Weight: Bending, points 16 to 21
27
Thermal Shock Resistance, points 28 to 46
8.3

Alloy Composition

Aluminum (Al), % 0 to 0.0050
82.1 to 89.5
Cadmium (Cd), % 0 to 0.050
0
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 39.5 to 40.5
0 to 1.0
Iron (Fe), % 0 to 0.050
0 to 0.8
Lead (Pb), % 0 to 0.030
0 to 0.2
Magnesium (Mg), % 0
0 to 0.35
Manganese (Mn), % 0
0.050 to 0.55
Nickel (Ni), % 0
0 to 0.3
Palladium (Pd), % 59 to 60.5
0
Silicon (Si), % 0
10.5 to 13.5
Silver (Ag), % 0 to 0.1
0
Tin (Sn), % 0
0 to 0.1
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0 to 0.060
0 to 0.55
Residuals, % 0
0 to 0.25