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AZ81A Magnesium vs. C77600 Nickel Silver

AZ81A magnesium belongs to the magnesium alloys classification, while C77600 nickel silver belongs to the copper alloys. There are 27 material properties with values for both materials. Properties with values for just one material (7, 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 AZ81A magnesium and the bottom bar is C77600 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 46
110
Elongation at Break, % 3.0 to 8.8
30
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 18
43
Shear Strength, MPa 91 to 130
410
Tensile Strength: Ultimate (UTS), MPa 160 to 240
630
Tensile Strength: Yield (Proof), MPa 84
320

Thermal Properties

Latent Heat of Fusion, J/g 350
180
Maximum Temperature: Mechanical, °C 130
140
Melting Completion (Liquidus), °C 600
830
Melting Onset (Solidus), °C 500
790
Specific Heat Capacity, J/kg-K 990
390
Thermal Expansion, µm/m-K 27
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
27
Electrical Conductivity: Equal Weight (Specific), % IACS 65
31

Otherwise Unclassified Properties

Base Metal Price, % relative 12
27
Density, g/cm3 1.7
7.9
Embodied Carbon, kg CO2/kg material 23
3.7
Embodied Energy, MJ/kg 160
60
Embodied Water, L/kg 990
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.0 to 17
160
Resilience: Unit (Modulus of Resilience), kJ/m3 77 to 78
470
Stiffness to Weight: Axial, points 15
7.9
Stiffness to Weight: Bending, points 70
20
Strength to Weight: Axial, points 26 to 39
22
Strength to Weight: Bending, points 38 to 50
21
Thermal Shock Resistance, points 9.1 to 14
20

Alloy Composition

Aluminum (Al), % 7.0 to 8.1
0
Copper (Cu), % 0 to 0.1
42 to 45
Iron (Fe), % 0
0 to 0.2
Lead (Pb), % 0
0 to 0.25
Magnesium (Mg), % 89.8 to 92.5
0
Manganese (Mn), % 0.13 to 0.35
0 to 0.25
Nickel (Ni), % 0 to 0.010
12 to 14
Silicon (Si), % 0 to 0.3
0
Tin (Sn), % 0
0 to 0.15
Zinc (Zn), % 0.4 to 1.0
39.7 to 46
Residuals, % 0 to 0.3
0 to 0.5