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ASTM B541 Gold vs. EN-MC65210 Magnesium

ASTM B541 gold belongs to the otherwise unclassified metals classification, while EN-MC65210 magnesium belongs to the magnesium alloys. There are 22 material properties with values for both materials. Properties with values for just one material (8, 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-MC65210 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
44
Elongation at Break, % 6.0 to 14
2.8
Poisson's Ratio 0.4
0.29
Shear Modulus, GPa 38
17
Shear Strength, MPa 410 to 690
150
Tensile Strength: Ultimate (UTS), MPa 670 to 1180
270
Tensile Strength: Yield (Proof), MPa 480 to 900
200

Thermal Properties

Latent Heat of Fusion, J/g 90
340
Melting Completion (Liquidus), °C 1110
610
Melting Onset (Solidus), °C 930
540
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
25
Electrical Conductivity: Equal Weight (Specific), % IACS 4.0 to 6.2
110

Otherwise Unclassified Properties

Density, g/cm3 17
2.0

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 65 to 91
6.9
Resilience: Unit (Modulus of Resilience), kJ/m3 1090 to 3830
450
Stiffness to Weight: Axial, points 3.4
12
Stiffness to Weight: Bending, points 9.0
59
Strength to Weight: Axial, points 11 to 19
38
Strength to Weight: Bending, points 9.8 to 14
47
Thermal Shock Resistance, points 36 to 63
17

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
92.6 to 95.6
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
2.0 to 3.0
Unspecified Rare Earths, % 0
2.0 to 3.0
Zinc (Zn), % 0.7 to 1.3
0 to 0.2
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.010