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AM60B Magnesium vs. ASTM B477 Au-Ni-Ag

AM60B magnesium belongs to the magnesium alloys classification, while ASTM B477 Au-Ni-Ag belongs to the otherwise unclassified metals. There are 19 material properties with values for both materials. Properties with values for just one material (13, 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 AM60B magnesium and the bottom bar is ASTM B477 Au-Ni-Ag.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
95
Elongation at Break, % 11
5.5 to 11
Poisson's Ratio 0.29
0.41
Shear Modulus, GPa 17
34
Shear Strength, MPa 140
190 to 320
Tensile Strength: Ultimate (UTS), MPa 230
310 to 550

Thermal Properties

Latent Heat of Fusion, J/g 350
80
Melting Completion (Liquidus), °C 620
1010
Melting Onset (Solidus), °C 540
930
Specific Heat Capacity, J/kg-K 1000
160
Thermal Expansion, µm/m-K 26
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
14
Electrical Conductivity: Equal Weight (Specific), % IACS 72
7.5

Otherwise Unclassified Properties

Density, g/cm3 1.7
17

Common Calculations

Stiffness to Weight: Axial, points 15
3.1
Stiffness to Weight: Bending, points 71
8.9
Strength to Weight: Axial, points 38
5.0 to 9.0
Strength to Weight: Bending, points 50
6.0 to 8.8
Thermal Shock Resistance, points 14
16 to 28

Alloy Composition


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Aluminum (Al), % 5.5 to 6.5
0
Copper (Cu), % 0 to 0.010
0
Gold (Au), % 0
74.2 to 75.8
Iron (Fe), % 0 to 0.0050
0
Magnesium (Mg), % 92.6 to 94.3
0
Manganese (Mn), % 0.24 to 0.6
0
Nickel (Ni), % 0 to 0.0020
2.6 to 3.4
Silicon (Si), % 0 to 0.1
0
Silver (Ag), % 0
21.4 to 22.6
Zinc (Zn), % 0 to 0.22
0
Residuals, % 0
0 to 0.3