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ISO-WD43150 Magnesium vs. C71520 Copper-nickel

ISO-WD43150 magnesium belongs to the magnesium alloys classification, while C71520 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 ISO-WD43150 magnesium and the bottom bar is C71520 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
140
Elongation at Break, % 2.8
10 to 45
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 18
51
Shear Strength, MPa 140
250 to 340
Tensile Strength: Ultimate (UTS), MPa 250
370 to 570
Tensile Strength: Yield (Proof), MPa 150
140 to 430

Thermal Properties

Latent Heat of Fusion, J/g 350
230
Maximum Temperature: Mechanical, °C 95
260
Melting Completion (Liquidus), °C 610
1170
Melting Onset (Solidus), °C 590
1120
Specific Heat Capacity, J/kg-K 990
400
Thermal Conductivity, W/m-K 140
32
Thermal Expansion, µm/m-K 27
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 31
5.7
Electrical Conductivity: Equal Weight (Specific), % IACS 170
5.8

Otherwise Unclassified Properties

Base Metal Price, % relative 12
40
Density, g/cm3 1.7
8.9
Embodied Carbon, kg CO2/kg material 24
5.0
Embodied Energy, MJ/kg 160
73
Embodied Water, L/kg 970
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.1
54 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 250
67 to 680
Stiffness to Weight: Axial, points 15
8.6
Stiffness to Weight: Bending, points 71
19
Strength to Weight: Axial, points 41
12 to 18
Strength to Weight: Bending, points 52
13 to 17
Thermal Diffusivity, mm2/s 81
8.9
Thermal Shock Resistance, points 14
12 to 19

Alloy Composition


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Carbon (C), % 0
0 to 0.050
Copper (Cu), % 0 to 0.050
65 to 71.6
Iron (Fe), % 0
0.4 to 1.0
Lead (Pb), % 0
0 to 0.020
Magnesium (Mg), % 97.5 to 98.8
0
Manganese (Mn), % 1.2 to 2.0
0 to 1.0
Nickel (Ni), % 0 to 0.010
28 to 33
Phosphorus (P), % 0
0 to 0.2
Silicon (Si), % 0 to 0.1
0
Sulfur (S), % 0
0 to 0.020
Zinc (Zn), % 0
0 to 0.5
Residuals, % 0 to 0.3
0 to 0.5