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AS41B Magnesium vs. CR017A Copper

AS41B magnesium belongs to the magnesium alloys classification, while CR017A 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 CR017A 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
230
Tensile Strength: Yield (Proof), MPa 140
140

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
380
Thermal Expansion, µm/m-K 26
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
100
Electrical Conductivity: Equal Weight (Specific), % IACS 92
100

Otherwise Unclassified Properties

Base Metal Price, % relative 12
32
Density, g/cm3 1.7
9.0
Embodied Carbon, kg CO2/kg material 23
2.6
Embodied Energy, MJ/kg 160
42
Embodied Water, L/kg 980
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
31
Resilience: Unit (Modulus of Resilience), kJ/m3 220
83
Stiffness to Weight: Axial, points 15
7.2
Stiffness to Weight: Bending, points 72
18
Strength to Weight: Axial, points 35
7.1
Strength to Weight: Bending, points 47
9.3
Thermal Diffusivity, mm2/s 41
110
Thermal Shock Resistance, points 13
8.1

Alloy Composition

Aluminum (Al), % 3.5 to 5.0
0
Bismuth (Bi), % 0
0 to 0.00050
Copper (Cu), % 0 to 0.020
99.944 to 99.97
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
Silicon (Si), % 0.5 to 1.5
0
Silver (Ag), % 0
0.030 to 0.050
Zinc (Zn), % 0 to 0.12
0