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AS41B Magnesium vs. CR015A Copper

AS41B magnesium belongs to the magnesium alloys classification, while CR015A copper belongs to the copper alloys. There are 28 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 AS41B magnesium and the bottom bar is CR015A copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
120
Elongation at Break, % 6.0
15
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 18
43
Tensile Strength: Ultimate (UTS), MPa 210
220
Tensile Strength: Yield (Proof), MPa 140
130

Thermal Properties

Latent Heat of Fusion, J/g 370
210
Maximum Temperature: Mechanical, °C 110
200
Melting Completion (Liquidus), °C 620
1090
Melting Onset (Solidus), °C 570
1040
Specific Heat Capacity, J/kg-K 1000
390
Thermal Conductivity, W/m-K 68
390
Thermal Expansion, µm/m-K 26
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
98
Electrical Conductivity: Equal Weight (Specific), % IACS 92
99

Otherwise Unclassified Properties

Base Metal Price, % relative 12
33
Density, g/cm3 1.7
9.0
Embodied Carbon, kg CO2/kg material 23
2.7
Embodied Energy, MJ/kg 160
42
Embodied Water, L/kg 980
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
29
Resilience: Unit (Modulus of Resilience), kJ/m3 220
76
Stiffness to Weight: Axial, points 15
7.2
Stiffness to Weight: Bending, points 72
18
Strength to Weight: Axial, points 35
6.8
Strength to Weight: Bending, points 47
9.0
Thermal Diffusivity, mm2/s 41
110
Thermal Shock Resistance, points 13
7.8

Alloy Composition

Aluminum (Al), % 3.5 to 5.0
0
Bismuth (Bi), % 0
0 to 0.00050
Copper (Cu), % 0 to 0.020
99.883 to 99.939
Iron (Fe), % 0 to 0.0035
0
Magnesium (Mg), % 92.7 to 95.7
0
Manganese (Mn), % 0.35 to 0.7
0
Nickel (Ni), % 0 to 0.0020
0
Phosphorus (P), % 0
0.0010 to 0.0070
Silicon (Si), % 0.5 to 1.5
0
Silver (Ag), % 0
0.060 to 0.080
Zinc (Zn), % 0 to 0.12
0