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C82700 Copper vs. ZE41A Magnesium

C82700 copper belongs to the copper alloys classification, while ZE41A magnesium belongs to the magnesium alloys. There are 27 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 C82700 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, % 1.8
3.3
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 46
18
Tensile Strength: Ultimate (UTS), MPa 1200
210
Tensile Strength: Yield (Proof), MPa 1020
140

Thermal Properties

Latent Heat of Fusion, J/g 240
330
Maximum Temperature: Mechanical, °C 300
150
Melting Completion (Liquidus), °C 950
640
Melting Onset (Solidus), °C 860
540
Specific Heat Capacity, J/kg-K 380
970
Thermal Conductivity, W/m-K 130
110
Thermal Expansion, µm/m-K 17
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 20
27
Electrical Conductivity: Equal Weight (Specific), % IACS 21
130

Otherwise Unclassified Properties

Density, g/cm3 8.7
1.9
Embodied Carbon, kg CO2/kg material 12
24
Embodied Energy, MJ/kg 180
170
Embodied Water, L/kg 310
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
6.1
Resilience: Unit (Modulus of Resilience), kJ/m3 4260
220
Stiffness to Weight: Axial, points 7.8
13
Stiffness to Weight: Bending, points 19
63
Strength to Weight: Axial, points 38
31
Strength to Weight: Bending, points 29
41
Thermal Diffusivity, mm2/s 39
59
Thermal Shock Resistance, points 41
12

Alloy Composition

Aluminum (Al), % 0 to 0.15
0
Beryllium (Be), % 2.4 to 2.6
0
Chromium (Cr), % 0 to 0.090
0
Copper (Cu), % 94.6 to 96.7
0 to 0.1
Iron (Fe), % 0 to 0.25
0
Lead (Pb), % 0 to 0.020
0
Magnesium (Mg), % 0
91.7 to 95.4
Manganese (Mn), % 0
0 to 0.15
Nickel (Ni), % 1.0 to 1.5
0 to 0.010
Silicon (Si), % 0 to 0.15
0
Tin (Sn), % 0 to 0.1
0
Unspecified Rare Earths, % 0
0.75 to 1.8
Zinc (Zn), % 0 to 0.1
3.5 to 5.0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3