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ASTM B541 Gold vs. 296.0 Aluminum

ASTM B541 gold belongs to the otherwise unclassified metals classification, while 296.0 aluminum belongs to the aluminum alloys. 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 ASTM B541 gold and the bottom bar is 296.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
72
Elongation at Break, % 6.0 to 14
3.2 to 7.1
Poisson's Ratio 0.4
0.33
Shear Modulus, GPa 38
27
Tensile Strength: Ultimate (UTS), MPa 670 to 1180
260 to 270
Tensile Strength: Yield (Proof), MPa 480 to 900
120 to 180

Thermal Properties

Latent Heat of Fusion, J/g 90
420
Melting Completion (Liquidus), °C 1110
630
Melting Onset (Solidus), °C 930
540
Specific Heat Capacity, J/kg-K 170
870
Thermal Expansion, µm/m-K 13
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.7 to 12
33 to 37
Electrical Conductivity: Equal Weight (Specific), % IACS 4.0 to 6.2
99 to 110

Otherwise Unclassified Properties

Density, g/cm3 17
3.0

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 65 to 91
7.6 to 15
Resilience: Unit (Modulus of Resilience), kJ/m3 1090 to 3830
110 to 220
Stiffness to Weight: Axial, points 3.4
13
Stiffness to Weight: Bending, points 9.0
46
Strength to Weight: Axial, points 11 to 19
24 to 25
Strength to Weight: Bending, points 9.8 to 14
30 to 31
Thermal Shock Resistance, points 36 to 63
12

Alloy Composition

Aluminum (Al), % 0
89 to 94
Copper (Cu), % 13.5 to 15.5
4.0 to 5.0
Gold (Au), % 70.5 to 72.5
0
Iron (Fe), % 0
0 to 1.2
Magnesium (Mg), % 0
0 to 0.050
Manganese (Mn), % 0
0 to 0.35
Nickel (Ni), % 0
0 to 0.35
Platinum (Pt), % 8.0 to 9.0
0
Silicon (Si), % 0
2.0 to 3.0
Silver (Ag), % 4.0 to 5.0
0
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0.7 to 1.3
0 to 0.5
Residuals, % 0
0 to 0.35