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AS41B Magnesium vs. C10800 Copper

AS41B magnesium belongs to the magnesium alloys classification, while C10800 copper belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, 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 C10800 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
120
Elongation at Break, % 6.0
4.0 to 50
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 18
43
Shear Strength, MPa 120
150 to 200
Tensile Strength: Ultimate (UTS), MPa 210
220 to 380
Tensile Strength: Yield (Proof), MPa 140
75 to 370

Thermal Properties

Latent Heat of Fusion, J/g 370
210
Maximum Temperature: Mechanical, °C 110
200
Melting Completion (Liquidus), °C 620
1080
Melting Onset (Solidus), °C 570
1080
Specific Heat Capacity, J/kg-K 1000
390
Thermal Conductivity, W/m-K 68
350
Thermal Expansion, µm/m-K 26
17

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 12
31
Density, g/cm3 1.7
9.0
Embodied Carbon, kg CO2/kg material 23
2.6
Embodied Energy, MJ/kg 160
41
Embodied Water, L/kg 980
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
15 to 88
Resilience: Unit (Modulus of Resilience), kJ/m3 220
24 to 600
Stiffness to Weight: Axial, points 15
7.2
Stiffness to Weight: Bending, points 72
18
Strength to Weight: Axial, points 35
6.8 to 12
Strength to Weight: Bending, points 47
9.1 to 13
Thermal Diffusivity, mm2/s 41
100
Thermal Shock Resistance, points 13
7.8 to 13

Alloy Composition

Aluminum (Al), % 3.5 to 5.0
0
Copper (Cu), % 0 to 0.020
99.95 to 99.995
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
0.0050 to 0.012
Silicon (Si), % 0.5 to 1.5
0
Zinc (Zn), % 0 to 0.12
0