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EN-MC21320 Magnesium vs. C12200 Copper

EN-MC21320 magnesium belongs to the magnesium alloys classification, while C12200 copper belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, 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 EN-MC21320 magnesium and the bottom bar is C12200 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
120
Elongation at Break, % 7.5
3.2 to 50
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 18
43
Shear Strength, MPa 130
150 to 240
Tensile Strength: Ultimate (UTS), MPa 230
220 to 410
Tensile Strength: Yield (Proof), MPa 140
69 to 400

Thermal Properties

Latent Heat of Fusion, J/g 370
210
Maximum Temperature: Mechanical, °C 110
200
Melting Completion (Liquidus), °C 600
1080
Melting Onset (Solidus), °C 530
1030
Specific Heat Capacity, J/kg-K 1000
390
Thermal Conductivity, W/m-K 66
340
Thermal Expansion, µm/m-K 26
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
85
Electrical Conductivity: Equal Weight (Specific), % IACS 91
85

Otherwise Unclassified Properties

Base Metal Price, % relative 12
31
Density, g/cm3 1.6
9.0
Embodied Carbon, kg CO2/kg material 23
2.6
Embodied Energy, MJ/kg 160
41
Embodied Water, L/kg 980
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 15
11 to 91
Resilience: Unit (Modulus of Resilience), kJ/m3 200
21 to 690
Stiffness to Weight: Axial, points 15
7.2
Stiffness to Weight: Bending, points 72
18
Strength to Weight: Axial, points 38
6.9 to 13
Strength to Weight: Bending, points 50
9.1 to 14
Thermal Diffusivity, mm2/s 40
98
Thermal Shock Resistance, points 13
7.9 to 15

Alloy Composition


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Aluminum (Al), % 3.5 to 5.0
0
Copper (Cu), % 0 to 0.010
99.9 to 99.985
Iron (Fe), % 0 to 0.0050
0
Magnesium (Mg), % 92.5 to 95.9
0
Manganese (Mn), % 0.1 to 0.7
0
Nickel (Ni), % 0 to 0.0020
0
Phosphorus (P), % 0
0.015 to 0.040
Silicon (Si), % 0.5 to 1.5
0
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.010
0