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K1A Magnesium vs. C11100 Copper

K1A magnesium belongs to the magnesium alloys classification, while C11100 copper belongs to the copper alloys. There are 29 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 K1A magnesium and the bottom bar is C11100 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 43
120
Elongation at Break, % 13
1.5
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 17
44
Shear Strength, MPa 55
230
Tensile Strength: Ultimate (UTS), MPa 180
460
Tensile Strength: Yield (Proof), MPa 51
420

Thermal Properties

Latent Heat of Fusion, J/g 350
210
Maximum Temperature: Mechanical, °C 120
200
Melting Completion (Liquidus), °C 650
1080
Melting Onset (Solidus), °C 650
1070
Specific Heat Capacity, J/kg-K 1000
390
Thermal Conductivity, W/m-K 120
390
Thermal Expansion, µm/m-K 27
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 30
100
Electrical Conductivity: Equal Weight (Specific), % IACS 170
100

Otherwise Unclassified Properties

Base Metal Price, % relative 13
31
Density, g/cm3 1.6
9.0
Embodied Carbon, kg CO2/kg material 24
2.6
Embodied Energy, MJ/kg 170
41
Embodied Water, L/kg 970
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 17
6.6
Resilience: Unit (Modulus of Resilience), kJ/m3 30
750
Stiffness to Weight: Axial, points 15
7.2
Stiffness to Weight: Bending, points 73
18
Strength to Weight: Axial, points 31
14
Strength to Weight: Bending, points 43
15
Thermal Diffusivity, mm2/s 75
110
Thermal Shock Resistance, points 11
16

Alloy Composition


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Copper (Cu), % 0
99.9 to 100
Magnesium (Mg), % 98.7 to 99.6
0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.3
0 to 0.1