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AZ92A Magnesium vs. C14700 Copper

AZ92A magnesium belongs to the magnesium alloys classification, while C14700 copper belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, 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 AZ92A magnesium and the bottom bar is C14700 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 47
120
Elongation at Break, % 2.1 to 6.8
9.1 to 35
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 18
43
Shear Strength, MPa 97 to 160
160 to 190
Tensile Strength: Ultimate (UTS), MPa 170 to 270
240 to 320
Tensile Strength: Yield (Proof), MPa 83 to 140
85 to 250

Thermal Properties

Latent Heat of Fusion, J/g 350
210
Maximum Temperature: Mechanical, °C 130
200
Melting Completion (Liquidus), °C 590
1080
Melting Onset (Solidus), °C 440
1070
Specific Heat Capacity, J/kg-K 980
390
Thermal Conductivity, W/m-K 44 to 58
370
Thermal Expansion, µm/m-K 26
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11 to 12
95
Electrical Conductivity: Equal Weight (Specific), % IACS 53 to 62
96

Otherwise Unclassified Properties

Base Metal Price, % relative 12
30
Density, g/cm3 1.8
8.9
Embodied Carbon, kg CO2/kg material 22
2.6
Embodied Energy, MJ/kg 160
41
Embodied Water, L/kg 980
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.0 to 14
25 to 65
Resilience: Unit (Modulus of Resilience), kJ/m3 73 to 220
31 to 280
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 67
18
Strength to Weight: Axial, points 26 to 41
7.3 to 10
Strength to Weight: Bending, points 38 to 51
9.5 to 12
Thermal Diffusivity, mm2/s 25 to 33
110
Thermal Shock Resistance, points 10 to 16
8.4 to 12

Alloy Composition

Aluminum (Al), % 8.3 to 9.7
0
Copper (Cu), % 0 to 0.25
99.395 to 99.798
Magnesium (Mg), % 86.7 to 90
0
Manganese (Mn), % 0.1 to 0.35
0
Nickel (Ni), % 0 to 0.010
0
Phosphorus (P), % 0
0.0020 to 0.0050
Silicon (Si), % 0 to 0.3
0
Sulfur (S), % 0
0.2 to 0.5
Zinc (Zn), % 1.6 to 2.4
0
Residuals, % 0
0 to 0.1