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C19025 Copper vs. ZE41A Magnesium

C19025 copper belongs to the copper alloys classification, while ZE41A magnesium belongs to the magnesium alloys. There are 26 material properties with values for both materials. Properties with values for just one material (8, 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 C19025 copper and the bottom bar is ZE41A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
45
Elongation at Break, % 8.0 to 17
3.3
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 43
18
Shear Strength, MPa 300 to 360
150
Tensile Strength: Ultimate (UTS), MPa 480 to 620
210

Thermal Properties

Latent Heat of Fusion, J/g 210
330
Maximum Temperature: Mechanical, °C 200
150
Melting Completion (Liquidus), °C 1080
640
Melting Onset (Solidus), °C 1020
540
Specific Heat Capacity, J/kg-K 380
970
Thermal Conductivity, W/m-K 160
110
Thermal Expansion, µm/m-K 17
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
27
Electrical Conductivity: Equal Weight (Specific), % IACS 40
130

Otherwise Unclassified Properties

Base Metal Price, % relative 31
18
Density, g/cm3 8.9
1.9
Embodied Carbon, kg CO2/kg material 2.8
24
Embodied Energy, MJ/kg 44
170
Embodied Water, L/kg 320
940

Common Calculations

Stiffness to Weight: Axial, points 7.2
13
Stiffness to Weight: Bending, points 18
63
Strength to Weight: Axial, points 15 to 19
31
Strength to Weight: Bending, points 15 to 18
41
Thermal Diffusivity, mm2/s 47
59
Thermal Shock Resistance, points 17 to 22
12

Alloy Composition

Copper (Cu), % 97.1 to 98.5
0 to 0.1
Magnesium (Mg), % 0
91.7 to 95.4
Manganese (Mn), % 0
0 to 0.15
Nickel (Ni), % 0.8 to 1.2
0 to 0.010
Phosphorus (P), % 0.030 to 0.070
0
Tin (Sn), % 0.7 to 1.1
0
Unspecified Rare Earths, % 0
0.75 to 1.8
Zinc (Zn), % 0 to 0.2
3.5 to 5.0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3