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K1A Magnesium vs. C71520 Copper-nickel

K1A magnesium belongs to the magnesium alloys classification, while C71520 copper-nickel belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, 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 C71520 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 43
140
Elongation at Break, % 13
10 to 45
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
51
Shear Strength, MPa 55
250 to 340
Tensile Strength: Ultimate (UTS), MPa 180
370 to 570
Tensile Strength: Yield (Proof), MPa 51
140 to 430

Thermal Properties

Latent Heat of Fusion, J/g 350
230
Maximum Temperature: Mechanical, °C 120
260
Melting Completion (Liquidus), °C 650
1170
Melting Onset (Solidus), °C 650
1120
Specific Heat Capacity, J/kg-K 1000
400
Thermal Conductivity, W/m-K 120
32
Thermal Expansion, µm/m-K 27
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 30
5.7
Electrical Conductivity: Equal Weight (Specific), % IACS 170
5.8

Otherwise Unclassified Properties

Base Metal Price, % relative 13
40
Density, g/cm3 1.6
8.9
Embodied Carbon, kg CO2/kg material 24
5.0
Embodied Energy, MJ/kg 170
73
Embodied Water, L/kg 970
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 17
54 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 30
67 to 680
Stiffness to Weight: Axial, points 15
8.6
Stiffness to Weight: Bending, points 73
19
Strength to Weight: Axial, points 31
12 to 18
Strength to Weight: Bending, points 43
13 to 17
Thermal Diffusivity, mm2/s 75
8.9
Thermal Shock Resistance, points 11
12 to 19

Alloy Composition


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Carbon (C), % 0
0 to 0.050
Copper (Cu), % 0
65 to 71.6
Iron (Fe), % 0
0.4 to 1.0
Lead (Pb), % 0
0 to 0.020
Magnesium (Mg), % 98.7 to 99.6
0
Manganese (Mn), % 0
0 to 1.0
Nickel (Ni), % 0
28 to 33
Phosphorus (P), % 0
0 to 0.2
Sulfur (S), % 0
0 to 0.020
Zinc (Zn), % 0
0 to 0.5
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.3
0 to 0.5