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C12900 Copper vs. ZE41A Magnesium

C12900 copper belongs to the copper alloys classification, while ZE41A magnesium belongs to the magnesium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (6, 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 C12900 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, % 2.8 to 50
3.3
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 43
18
Shear Strength, MPa 150 to 210
150
Tensile Strength: Ultimate (UTS), MPa 220 to 420
210
Tensile Strength: Yield (Proof), MPa 75 to 380
140

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 1030
540
Specific Heat Capacity, J/kg-K 390
970
Thermal Conductivity, W/m-K 380
110
Thermal Expansion, µm/m-K 17
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 98
27
Electrical Conductivity: Equal Weight (Specific), % IACS 98
130

Otherwise Unclassified Properties

Base Metal Price, % relative 32
18
Density, g/cm3 9.0
1.9
Embodied Carbon, kg CO2/kg material 2.6
24
Embodied Energy, MJ/kg 41
170
Embodied Water, L/kg 330
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11 to 88
6.1
Resilience: Unit (Modulus of Resilience), kJ/m3 24 to 640
220
Stiffness to Weight: Axial, points 7.2
13
Stiffness to Weight: Bending, points 18
63
Strength to Weight: Axial, points 6.8 to 13
31
Strength to Weight: Bending, points 9.1 to 14
41
Thermal Diffusivity, mm2/s 110
59
Thermal Shock Resistance, points 7.8 to 15
12

Alloy Composition

Antimony (Sb), % 0 to 0.0030
0
Arsenic (As), % 0 to 0.012
0
Bismuth (Bi), % 0 to 0.0030
0
Copper (Cu), % 99.88 to 100
0 to 0.1
Lead (Pb), % 0 to 0.0040
0
Magnesium (Mg), % 0
91.7 to 95.4
Manganese (Mn), % 0
0 to 0.15
Nickel (Ni), % 0 to 0.050
0 to 0.010
Silver (Ag), % 0 to 0.054
0
Tellurium (Te), % 0 to 0.025
0
Unspecified Rare Earths, % 0
0.75 to 1.8
Zinc (Zn), % 0
3.5 to 5.0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3