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3105 Aluminum vs. ASTM B596 Au-Cu

3105 aluminum belongs to the aluminum alloys classification, while ASTM B596 Au-Cu belongs to the otherwise unclassified metals. There are 19 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 3105 aluminum and the bottom bar is ASTM B596 Au-Cu.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
100
Elongation at Break, % 1.1 to 20
4.3 to 17
Poisson's Ratio 0.33
0.41
Shear Modulus, GPa 26
36
Shear Strength, MPa 77 to 140
280 to 360
Tensile Strength: Ultimate (UTS), MPa 120 to 240
450 to 620

Thermal Properties

Latent Heat of Fusion, J/g 400
77
Melting Completion (Liquidus), °C 660
1060
Melting Onset (Solidus), °C 640
930
Specific Heat Capacity, J/kg-K 900
150
Thermal Expansion, µm/m-K 24
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 44
14
Electrical Conductivity: Equal Weight (Specific), % IACS 140
6.7

Otherwise Unclassified Properties

Density, g/cm3 2.8
18

Common Calculations

Stiffness to Weight: Axial, points 14
3.1
Stiffness to Weight: Bending, points 50
8.5
Strength to Weight: Axial, points 12 to 24
6.8 to 9.4
Strength to Weight: Bending, points 20 to 31
7.1 to 8.8
Thermal Shock Resistance, points 5.2 to 11
22 to 30

Alloy Composition

Aluminum (Al), % 96 to 99.5
0
Chromium (Cr), % 0 to 0.2
0
Copper (Cu), % 0 to 0.3
9.0 to 11
Gold (Au), % 0
89 to 91
Iron (Fe), % 0 to 0.7
0
Magnesium (Mg), % 0.2 to 0.8
0
Manganese (Mn), % 0.3 to 0.8
0
Silicon (Si), % 0 to 0.6
0
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.4
0
Residuals, % 0
0 to 0.4

Comparable Variants