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ASTM B541 Gold vs. EN-MC35110 Magnesium

ASTM B541 gold belongs to the otherwise unclassified metals classification, while EN-MC35110 magnesium belongs to the magnesium alloys. There are 22 material properties with values for both materials. Properties with values for just one material (10, 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 EN-MC35110 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
45
Elongation at Break, % 6.0 to 14
3.1
Poisson's Ratio 0.4
0.29
Shear Modulus, GPa 38
18
Shear Strength, MPa 410 to 690
130
Tensile Strength: Ultimate (UTS), MPa 670 to 1180
230
Tensile Strength: Yield (Proof), MPa 480 to 900
150

Thermal Properties

Latent Heat of Fusion, J/g 90
330
Melting Completion (Liquidus), °C 1110
600
Melting Onset (Solidus), °C 930
520
Specific Heat Capacity, J/kg-K 170
970
Thermal Expansion, µm/m-K 13
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.7 to 12
27
Electrical Conductivity: Equal Weight (Specific), % IACS 4.0 to 6.2
130

Otherwise Unclassified Properties

Density, g/cm3 17
1.9

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 65 to 91
6.3
Resilience: Unit (Modulus of Resilience), kJ/m3 1090 to 3830
260
Stiffness to Weight: Axial, points 3.4
13
Stiffness to Weight: Bending, points 9.0
63
Strength to Weight: Axial, points 11 to 19
34
Strength to Weight: Bending, points 9.8 to 14
44
Thermal Shock Resistance, points 36 to 63
14

Alloy Composition

Copper (Cu), % 13.5 to 15.5
0 to 0.030
Gold (Au), % 70.5 to 72.5
0
Iron (Fe), % 0
0 to 0.010
Magnesium (Mg), % 0
92 to 95.4
Manganese (Mn), % 0
0 to 0.15
Nickel (Ni), % 0
0 to 0.0050
Platinum (Pt), % 8.0 to 9.0
0
Silicon (Si), % 0
0 to 0.010
Silver (Ag), % 4.0 to 5.0
0
Unspecified Rare Earths, % 0
0.75 to 1.8
Zinc (Zn), % 0.7 to 1.3
3.5 to 5.0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.010