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AZ91A Magnesium vs. C17465 Copper

AZ91A magnesium belongs to the magnesium alloys classification, while C17465 copper belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, 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 AZ91A magnesium and the bottom bar is C17465 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 46
120
Elongation at Break, % 5.0
5.3 to 36
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 18
44
Shear Strength, MPa 140
210 to 540
Tensile Strength: Ultimate (UTS), MPa 240
310 to 930
Tensile Strength: Yield (Proof), MPa 160
120 to 830

Thermal Properties

Latent Heat of Fusion, J/g 360
210
Maximum Temperature: Mechanical, °C 130
210
Melting Completion (Liquidus), °C 600
1080
Melting Onset (Solidus), °C 470
1030
Specific Heat Capacity, J/kg-K 990
390
Thermal Conductivity, W/m-K 73
220
Thermal Expansion, µm/m-K 26
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
22 to 51
Electrical Conductivity: Equal Weight (Specific), % IACS 52
23 to 52

Otherwise Unclassified Properties

Base Metal Price, % relative 12
45
Density, g/cm3 1.7
8.9
Embodied Carbon, kg CO2/kg material 22
4.1
Embodied Energy, MJ/kg 160
64
Embodied Water, L/kg 990
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
47 to 90
Resilience: Unit (Modulus of Resilience), kJ/m3 280
64 to 2920
Stiffness to Weight: Axial, points 15
7.3
Stiffness to Weight: Bending, points 69
18
Strength to Weight: Axial, points 38
9.7 to 29
Strength to Weight: Bending, points 49
11 to 24
Thermal Diffusivity, mm2/s 42
64
Thermal Shock Resistance, points 14
11 to 33

Alloy Composition


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Aluminum (Al), % 8.3 to 9.7
0 to 0.2
Beryllium (Be), % 0
0.15 to 0.5
Copper (Cu), % 0 to 0.1
95.7 to 98.7
Iron (Fe), % 0
0 to 0.2
Lead (Pb), % 0
0.2 to 0.6
Magnesium (Mg), % 88.2 to 91.2
0
Manganese (Mn), % 0.13 to 0.5
0
Nickel (Ni), % 0 to 0.030
1.0 to 1.4
Silicon (Si), % 0 to 0.5
0 to 0.2
Tin (Sn), % 0
0 to 0.25
Zinc (Zn), % 0.35 to 1.0
0
Zirconium (Zr), % 0
0 to 0.5
Residuals, % 0
0 to 0.5