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AM60B Magnesium vs. C18900 Copper

AM60B magnesium belongs to the magnesium alloys classification, while C18900 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 AM60B magnesium and the bottom bar is C18900 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
120
Elongation at Break, % 11
14 to 48
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 17
43
Shear Strength, MPa 140
190 to 300
Tensile Strength: Ultimate (UTS), MPa 230
260 to 500
Tensile Strength: Yield (Proof), MPa 130
67 to 390

Thermal Properties

Latent Heat of Fusion, J/g 350
210
Maximum Temperature: Mechanical, °C 120
200
Melting Completion (Liquidus), °C 620
1080
Melting Onset (Solidus), °C 540
1020
Specific Heat Capacity, J/kg-K 1000
390
Thermal Conductivity, W/m-K 61
130
Thermal Expansion, µm/m-K 26
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
30
Electrical Conductivity: Equal Weight (Specific), % IACS 72
30

Otherwise Unclassified Properties

Base Metal Price, % relative 12
31
Density, g/cm3 1.7
8.9
Embodied Carbon, kg CO2/kg material 23
2.7
Embodied Energy, MJ/kg 160
42
Embodied Water, L/kg 990
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
65 to 95
Resilience: Unit (Modulus of Resilience), kJ/m3 190
20 to 660
Stiffness to Weight: Axial, points 15
7.2
Stiffness to Weight: Bending, points 71
18
Strength to Weight: Axial, points 38
8.2 to 16
Strength to Weight: Bending, points 50
10 to 16
Thermal Diffusivity, mm2/s 37
38
Thermal Shock Resistance, points 14
9.3 to 18

Alloy Composition


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Aluminum (Al), % 5.5 to 6.5
0 to 0.010
Copper (Cu), % 0 to 0.010
97.7 to 99.15
Iron (Fe), % 0 to 0.0050
0
Lead (Pb), % 0
0 to 0.020
Magnesium (Mg), % 92.6 to 94.3
0
Manganese (Mn), % 0.24 to 0.6
0.1 to 0.3
Nickel (Ni), % 0 to 0.0020
0
Phosphorus (P), % 0
0 to 0.050
Silicon (Si), % 0 to 0.1
0.15 to 0.4
Tin (Sn), % 0
0.6 to 0.9
Zinc (Zn), % 0 to 0.22
0 to 0.1
Residuals, % 0
0 to 0.5