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EN-MC21320 Magnesium vs. C72150 Copper-nickel

EN-MC21320 magnesium belongs to the magnesium alloys classification, while C72150 copper-nickel belongs to the copper alloys. There are 30 material properties with values for both materials. Properties with values for just one material (1, 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 C72150 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 68
99
Elastic (Young's, Tensile) Modulus, GPa 45
150
Elongation at Break, % 7.5
29
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 18
55
Shear Strength, MPa 130
320
Tensile Strength: Ultimate (UTS), MPa 230
490
Tensile Strength: Yield (Proof), MPa 140
210

Thermal Properties

Latent Heat of Fusion, J/g 370
250
Maximum Temperature: Mechanical, °C 110
600
Melting Completion (Liquidus), °C 600
1210
Melting Onset (Solidus), °C 530
1250
Specific Heat Capacity, J/kg-K 1000
410
Thermal Conductivity, W/m-K 66
22
Thermal Expansion, µm/m-K 26
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
3.5
Electrical Conductivity: Equal Weight (Specific), % IACS 91
3.6

Otherwise Unclassified Properties

Base Metal Price, % relative 12
45
Density, g/cm3 1.6
8.9
Embodied Carbon, kg CO2/kg material 23
6.1
Embodied Energy, MJ/kg 160
88
Embodied Water, L/kg 980
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 15
120
Resilience: Unit (Modulus of Resilience), kJ/m3 200
150
Stiffness to Weight: Axial, points 15
9.1
Stiffness to Weight: Bending, points 72
20
Strength to Weight: Axial, points 38
15
Strength to Weight: Bending, points 50
15
Thermal Diffusivity, mm2/s 40
6.0
Thermal Shock Resistance, points 13
18

Alloy Composition


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Aluminum (Al), % 3.5 to 5.0
0
Carbon (C), % 0
0 to 0.1
Copper (Cu), % 0 to 0.010
52.5 to 57
Iron (Fe), % 0 to 0.0050
0 to 0.1
Lead (Pb), % 0
0 to 0.050
Magnesium (Mg), % 92.5 to 95.9
0
Manganese (Mn), % 0.1 to 0.7
0 to 0.050
Nickel (Ni), % 0 to 0.0020
43 to 46
Silicon (Si), % 0.5 to 1.5
0 to 0.5
Zinc (Zn), % 0 to 0.2
0 to 0.2
Residuals, % 0 to 0.010
0 to 0.5