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EN AC-45000 Aluminum vs. ASTM B541 Gold

EN AC-45000 aluminum belongs to the aluminum alloys classification, while ASTM B541 gold belongs to the otherwise unclassified metals. There are 21 material properties with values for both materials. Properties with values for just one material (11, 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-45000 aluminum and the bottom bar is ASTM B541 gold.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
110
Elongation at Break, % 1.1
6.0 to 14
Poisson's Ratio 0.33
0.4
Shear Modulus, GPa 27
38
Tensile Strength: Ultimate (UTS), MPa 180
670 to 1180
Tensile Strength: Yield (Proof), MPa 110
480 to 900

Thermal Properties

Latent Heat of Fusion, J/g 470
90
Melting Completion (Liquidus), °C 640
1110
Melting Onset (Solidus), °C 520
930
Specific Heat Capacity, J/kg-K 870
170
Thermal Expansion, µm/m-K 22
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
7.7 to 12
Electrical Conductivity: Equal Weight (Specific), % IACS 81
4.0 to 6.2

Otherwise Unclassified Properties

Density, g/cm3 3.0
17

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 1.7
65 to 91
Resilience: Unit (Modulus of Resilience), kJ/m3 80
1090 to 3830
Stiffness to Weight: Axial, points 14
3.4
Stiffness to Weight: Bending, points 47
9.0
Strength to Weight: Axial, points 17
11 to 19
Strength to Weight: Bending, points 24
9.8 to 14
Thermal Shock Resistance, points 8.0
36 to 63

Alloy Composition

Aluminum (Al), % 82.2 to 91.8
0
Chromium (Cr), % 0 to 0.15
0
Copper (Cu), % 3.0 to 5.0
13.5 to 15.5
Gold (Au), % 0
70.5 to 72.5
Iron (Fe), % 0 to 1.0
0
Lead (Pb), % 0 to 0.3
0
Magnesium (Mg), % 0 to 0.55
0
Manganese (Mn), % 0.2 to 0.65
0
Nickel (Ni), % 0 to 0.45
0
Platinum (Pt), % 0
8.0 to 9.0
Silicon (Si), % 5.0 to 7.0
0
Silver (Ag), % 0
4.0 to 5.0
Tin (Sn), % 0 to 0.15
0
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 2.0
0.7 to 1.3
Residuals, % 0
0 to 0.4