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C70260 Copper vs. ZE41A Magnesium

C70260 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 (5, 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 C70260 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, % 9.5 to 19
3.3
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 44
18
Shear Strength, MPa 320 to 450
150
Tensile Strength: Ultimate (UTS), MPa 520 to 760
210
Tensile Strength: Yield (Proof), MPa 410 to 650
140

Thermal Properties

Latent Heat of Fusion, J/g 220
330
Maximum Temperature: Mechanical, °C 200
150
Melting Completion (Liquidus), °C 1060
640
Melting Onset (Solidus), °C 1040
540
Specific Heat Capacity, J/kg-K 390
970
Thermal Conductivity, W/m-K 160
110
Thermal Expansion, µm/m-K 17
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40 to 50
27
Electrical Conductivity: Equal Weight (Specific), % IACS 40 to 51
130

Otherwise Unclassified Properties

Base Metal Price, % relative 31
18
Density, g/cm3 8.9
1.9
Embodied Carbon, kg CO2/kg material 2.7
24
Embodied Energy, MJ/kg 43
170
Embodied Water, L/kg 310
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 46 to 140
6.1
Resilience: Unit (Modulus of Resilience), kJ/m3 710 to 1810
220
Stiffness to Weight: Axial, points 7.3
13
Stiffness to Weight: Bending, points 18
63
Strength to Weight: Axial, points 16 to 24
31
Strength to Weight: Bending, points 16 to 21
41
Thermal Diffusivity, mm2/s 45
59
Thermal Shock Resistance, points 18 to 27
12

Alloy Composition

Copper (Cu), % 95.8 to 98.8
0 to 0.1
Magnesium (Mg), % 0
91.7 to 95.4
Manganese (Mn), % 0
0 to 0.15
Nickel (Ni), % 1.0 to 3.0
0 to 0.010
Phosphorus (P), % 0 to 0.010
0
Silicon (Si), % 0.2 to 0.7
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