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EN-MC65210 Magnesium vs. C71520 Copper-nickel

EN-MC65210 magnesium belongs to the magnesium alloys classification, while C71520 copper-nickel belongs to the copper alloys. There are 27 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 EN-MC65210 magnesium and the bottom bar is C71520 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
140
Elongation at Break, % 2.8
10 to 45
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
51
Shear Strength, MPa 150
250 to 340
Tensile Strength: Ultimate (UTS), MPa 270
370 to 570
Tensile Strength: Yield (Proof), MPa 200
140 to 430

Thermal Properties

Latent Heat of Fusion, J/g 340
230
Maximum Temperature: Mechanical, °C 170
260
Melting Completion (Liquidus), °C 610
1170
Melting Onset (Solidus), °C 540
1120
Specific Heat Capacity, J/kg-K 970
400
Thermal Conductivity, W/m-K 110
32
Thermal Expansion, µm/m-K 26
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
5.7
Electrical Conductivity: Equal Weight (Specific), % IACS 110
5.8

Otherwise Unclassified Properties

Density, g/cm3 2.0
8.9
Embodied Carbon, kg CO2/kg material 27
5.0
Embodied Energy, MJ/kg 220
73

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.9
54 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 450
67 to 680
Stiffness to Weight: Axial, points 12
8.6
Stiffness to Weight: Bending, points 59
19
Strength to Weight: Axial, points 38
12 to 18
Strength to Weight: Bending, points 47
13 to 17
Thermal Diffusivity, mm2/s 58
8.9
Thermal Shock Resistance, points 17
12 to 19

Alloy Composition


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Carbon (C), % 0
0 to 0.050
Copper (Cu), % 0 to 0.030
65 to 71.6
Iron (Fe), % 0 to 0.010
0.4 to 1.0
Lead (Pb), % 0
0 to 0.020
Magnesium (Mg), % 92.6 to 95.6
0
Manganese (Mn), % 0 to 0.15
0 to 1.0
Nickel (Ni), % 0 to 0.0050
28 to 33
Phosphorus (P), % 0
0 to 0.2
Silicon (Si), % 0 to 0.010
0
Silver (Ag), % 2.0 to 3.0
0
Sulfur (S), % 0
0 to 0.020
Unspecified Rare Earths, % 2.0 to 3.0
0
Zinc (Zn), % 0 to 0.2
0 to 0.5
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0 to 0.5