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EN-MC21210 Magnesium vs. C72900 Copper-nickel

EN-MC21210 magnesium belongs to the magnesium alloys classification, while C72900 copper-nickel 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 EN-MC21210 magnesium and the bottom bar is C72900 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
120
Elongation at Break, % 14
6.0 to 20
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 17
45
Shear Strength, MPa 110
540 to 630
Tensile Strength: Ultimate (UTS), MPa 190
870 to 1080
Tensile Strength: Yield (Proof), MPa 90
700 to 920

Thermal Properties

Latent Heat of Fusion, J/g 350
210
Maximum Temperature: Mechanical, °C 100
210
Melting Completion (Liquidus), °C 600
1120
Melting Onset (Solidus), °C 570
950
Specific Heat Capacity, J/kg-K 1000
380
Thermal Conductivity, W/m-K 120
29
Thermal Expansion, µm/m-K 27
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 130
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 12
39
Density, g/cm3 1.6
8.8
Embodied Carbon, kg CO2/kg material 24
4.6
Embodied Energy, MJ/kg 160
72
Embodied Water, L/kg 980
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 22
49 to 210
Resilience: Unit (Modulus of Resilience), kJ/m3 92
2030 to 3490
Stiffness to Weight: Axial, points 15
7.6
Stiffness to Weight: Bending, points 72
19
Strength to Weight: Axial, points 32
27 to 34
Strength to Weight: Bending, points 44
23 to 27
Thermal Diffusivity, mm2/s 76
8.6
Thermal Shock Resistance, points 11
31 to 38

Alloy Composition


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Aluminum (Al), % 1.6 to 2.6
0
Copper (Cu), % 0 to 0.010
74.1 to 78
Iron (Fe), % 0 to 0.0050
0 to 0.5
Lead (Pb), % 0
0 to 0.020
Magnesium (Mg), % 96.3 to 98.3
0 to 0.15
Manganese (Mn), % 0.1 to 0.7
0 to 0.3
Nickel (Ni), % 0 to 0.0020
14.5 to 15.5
Niobium (Nb), % 0
0 to 0.1
Silicon (Si), % 0 to 0.1
0
Tin (Sn), % 0
7.5 to 8.5
Zinc (Zn), % 0 to 0.2
0 to 0.5
Residuals, % 0 to 0.010
0 to 0.3