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K1A Magnesium vs. C70260 Copper

K1A magnesium belongs to the magnesium alloys classification, while C70260 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 C70260 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 43
120
Elongation at Break, % 13
9.5 to 19
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 17
44
Shear Strength, MPa 55
320 to 450
Tensile Strength: Ultimate (UTS), MPa 180
520 to 760
Tensile Strength: Yield (Proof), MPa 51
410 to 650

Thermal Properties

Latent Heat of Fusion, J/g 350
220
Maximum Temperature: Mechanical, °C 120
200
Melting Completion (Liquidus), °C 650
1060
Melting Onset (Solidus), °C 650
1040
Specific Heat Capacity, J/kg-K 1000
390
Thermal Conductivity, W/m-K 120
160
Thermal Expansion, µm/m-K 27
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 30
40 to 50
Electrical Conductivity: Equal Weight (Specific), % IACS 170
40 to 51

Otherwise Unclassified Properties

Base Metal Price, % relative 13
31
Density, g/cm3 1.6
8.9
Embodied Carbon, kg CO2/kg material 24
2.7
Embodied Energy, MJ/kg 170
43
Embodied Water, L/kg 970
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 17
46 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 30
710 to 1810
Stiffness to Weight: Axial, points 15
7.3
Stiffness to Weight: Bending, points 73
18
Strength to Weight: Axial, points 31
16 to 24
Strength to Weight: Bending, points 43
16 to 21
Thermal Diffusivity, mm2/s 75
45
Thermal Shock Resistance, points 11
18 to 27

Alloy Composition

Copper (Cu), % 0
95.8 to 98.8
Magnesium (Mg), % 98.7 to 99.6
0
Nickel (Ni), % 0
1.0 to 3.0
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0
0.2 to 0.7
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.3
0 to 0.5