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ASTM B596 Au-Cu vs. EN-MC35110 Magnesium

ASTM B596 Au-Cu belongs to the otherwise unclassified metals classification, while EN-MC35110 magnesium belongs to the magnesium alloys. There are 19 material properties with values for both materials. Properties with values for just one material (12, 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 B596 Au-Cu and the bottom bar is EN-MC35110 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
45
Elongation at Break, % 4.3 to 17
3.1
Poisson's Ratio 0.41
0.29
Shear Modulus, GPa 36
18
Shear Strength, MPa 280 to 360
130
Tensile Strength: Ultimate (UTS), MPa 450 to 620
230

Thermal Properties

Latent Heat of Fusion, J/g 77
330
Melting Completion (Liquidus), °C 1060
600
Melting Onset (Solidus), °C 930
520
Specific Heat Capacity, J/kg-K 150
970
Thermal Expansion, µm/m-K 14
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 14
27
Electrical Conductivity: Equal Weight (Specific), % IACS 6.7
130

Otherwise Unclassified Properties

Density, g/cm3 18
1.9

Common Calculations

Stiffness to Weight: Axial, points 3.1
13
Stiffness to Weight: Bending, points 8.5
63
Strength to Weight: Axial, points 6.8 to 9.4
34
Strength to Weight: Bending, points 7.1 to 8.8
44
Thermal Shock Resistance, points 22 to 30
14

Alloy Composition

Copper (Cu), % 9.0 to 11
0 to 0.030
Gold (Au), % 89 to 91
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
Silicon (Si), % 0
0 to 0.010
Unspecified Rare Earths, % 0
0.75 to 1.8
Zinc (Zn), % 0
3.5 to 5.0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.010