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ZK51A Magnesium vs. C17500 Copper

ZK51A magnesium belongs to the magnesium alloys classification, while C17500 copper belongs to the copper alloys. There are 30 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 ZK51A magnesium and the bottom bar is C17500 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
120
Elongation at Break, % 4.7
6.0 to 30
Fatigue Strength, MPa 62
170 to 310
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 18
45
Shear Strength, MPa 160
200 to 520
Tensile Strength: Ultimate (UTS), MPa 240
310 to 860
Tensile Strength: Yield (Proof), MPa 150
170 to 760

Thermal Properties

Latent Heat of Fusion, J/g 340
220
Maximum Temperature: Mechanical, °C 120
220
Melting Completion (Liquidus), °C 640
1060
Melting Onset (Solidus), °C 550
1020
Specific Heat Capacity, J/kg-K 970
390
Thermal Conductivity, W/m-K 110
200
Thermal Expansion, µm/m-K 26
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
24 to 53
Electrical Conductivity: Equal Weight (Specific), % IACS 140
24 to 54

Otherwise Unclassified Properties

Base Metal Price, % relative 13
60
Density, g/cm3 1.8
8.9
Embodied Carbon, kg CO2/kg material 24
4.7
Embodied Energy, MJ/kg 160
73
Embodied Water, L/kg 940
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 10
30 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 260
120 to 2390
Stiffness to Weight: Axial, points 14
7.5
Stiffness to Weight: Bending, points 64
18
Strength to Weight: Axial, points 36
9.7 to 27
Strength to Weight: Bending, points 47
11 to 23
Thermal Diffusivity, mm2/s 61
59
Thermal Shock Resistance, points 15
11 to 29

Alloy Composition

Aluminum (Al), % 0
0 to 0.2
Beryllium (Be), % 0
0.4 to 0.7
Cobalt (Co), % 0
2.4 to 2.7
Copper (Cu), % 0 to 0.1
95.6 to 97.2
Iron (Fe), % 0
0 to 0.1
Magnesium (Mg), % 93.1 to 95.9
0
Nickel (Ni), % 0 to 0.010
0
Silicon (Si), % 0
0 to 0.2
Zinc (Zn), % 3.6 to 5.5
0
Zirconium (Zr), % 0.5 to 1.0
0
Residuals, % 0
0 to 0.5