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CC381H Copper-nickel vs. ZK61A Magnesium

CC381H copper-nickel belongs to the copper alloys classification, while ZK61A magnesium belongs to the magnesium alloys. There are 28 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 CC381H copper-nickel and the bottom bar is ZK61A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
46
Elongation at Break, % 20
5.8 to 7.1
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 52
18
Tensile Strength: Ultimate (UTS), MPa 380
290 to 310
Tensile Strength: Yield (Proof), MPa 140
180 to 200

Thermal Properties

Latent Heat of Fusion, J/g 240
330
Maximum Temperature: Mechanical, °C 260
120
Melting Completion (Liquidus), °C 1180
640
Melting Onset (Solidus), °C 1120
530
Specific Heat Capacity, J/kg-K 410
960
Thermal Conductivity, W/m-K 30
120
Thermal Expansion, µm/m-K 16
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.8
29
Electrical Conductivity: Equal Weight (Specific), % IACS 6.9
130

Otherwise Unclassified Properties

Base Metal Price, % relative 40
13
Density, g/cm3 8.9
1.9
Embodied Carbon, kg CO2/kg material 5.0
23
Embodied Energy, MJ/kg 73
160
Embodied Water, L/kg 280
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 60
15 to 19
Resilience: Unit (Modulus of Resilience), kJ/m3 68
370 to 420
Stiffness to Weight: Axial, points 8.6
13
Stiffness to Weight: Bending, points 19
62
Strength to Weight: Axial, points 12
42 to 45
Strength to Weight: Bending, points 13
50 to 53
Thermal Diffusivity, mm2/s 8.4
65
Thermal Shock Resistance, points 13
17 to 18

Alloy Composition

Aluminum (Al), % 0 to 0.010
0
Carbon (C), % 0 to 0.030
0
Copper (Cu), % 64.5 to 69.9
0 to 0.1
Iron (Fe), % 0.5 to 1.5
0
Lead (Pb), % 0 to 0.030
0
Magnesium (Mg), % 0
92.1 to 93.9
Manganese (Mn), % 0.6 to 1.2
0
Nickel (Ni), % 29 to 31
0 to 0.010
Phosphorus (P), % 0 to 0.010
0
Silicon (Si), % 0 to 0.1
0
Sulfur (S), % 0 to 0.010
0
Zinc (Zn), % 0 to 0.5
5.5 to 6.5
Zirconium (Zr), % 0
0.6 to 1.0
Residuals, % 0
0 to 0.3