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CR025A Copper vs. ZK60A Magnesium

CR025A copper belongs to the copper alloys classification, while ZK60A magnesium belongs to the magnesium alloys. There are 28 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 CR025A copper and the bottom bar is ZK60A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
46
Elongation at Break, % 15
4.5 to 9.9
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 43
18
Tensile Strength: Ultimate (UTS), MPa 230
320 to 330
Tensile Strength: Yield (Proof), MPa 140
230 to 250

Thermal Properties

Latent Heat of Fusion, J/g 210
330
Maximum Temperature: Mechanical, °C 200
120
Melting Completion (Liquidus), °C 1090
600
Melting Onset (Solidus), °C 1040
550
Specific Heat Capacity, J/kg-K 390
960
Thermal Conductivity, W/m-K 370
120
Thermal Expansion, µm/m-K 17
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 99
29 to 30
Electrical Conductivity: Equal Weight (Specific), % IACS 99
140

Otherwise Unclassified Properties

Base Metal Price, % relative 31
13
Density, g/cm3 9.0
1.9
Embodied Carbon, kg CO2/kg material 2.6
23
Embodied Energy, MJ/kg 41
160
Embodied Water, L/kg 320
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31
14 to 29
Resilience: Unit (Modulus of Resilience), kJ/m3 83
570 to 690
Stiffness to Weight: Axial, points 7.2
13
Stiffness to Weight: Bending, points 18
63
Strength to Weight: Axial, points 7.1
47 to 49
Strength to Weight: Bending, points 9.3
55 to 56
Thermal Diffusivity, mm2/s 110
66
Thermal Shock Resistance, points 8.1
19 to 20

Alloy Composition

Bismuth (Bi), % 0 to 0.00050
0
Copper (Cu), % 99.9 to 99.96
0
Lead (Pb), % 0 to 0.0050
0
Magnesium (Mg), % 0
92.5 to 94.8
Phosphorus (P), % 0.040 to 0.060
0
Silver (Ag), % 0 to 0.015
0
Zinc (Zn), % 0
4.8 to 6.2
Zirconium (Zr), % 0
0.45 to 1.0
Residuals, % 0
0 to 0.3