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AS41B Magnesium vs. CC380H Copper-nickel

AS41B magnesium belongs to the magnesium alloys classification, while CC380H copper-nickel belongs to the copper alloys. There are 28 material properties with values for both materials. Properties with values for just one material (3, 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 CC380H copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
120
Elongation at Break, % 6.0
26
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 18
47
Tensile Strength: Ultimate (UTS), MPa 210
310
Tensile Strength: Yield (Proof), MPa 140
120

Thermal Properties

Latent Heat of Fusion, J/g 370
220
Maximum Temperature: Mechanical, °C 110
220
Melting Completion (Liquidus), °C 620
1130
Melting Onset (Solidus), °C 570
1080
Specific Heat Capacity, J/kg-K 1000
390
Thermal Conductivity, W/m-K 68
46
Thermal Expansion, µm/m-K 26
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
11
Electrical Conductivity: Equal Weight (Specific), % IACS 92
11

Otherwise Unclassified Properties

Base Metal Price, % relative 12
36
Density, g/cm3 1.7
8.9
Embodied Carbon, kg CO2/kg material 23
3.8
Embodied Energy, MJ/kg 160
58
Embodied Water, L/kg 980
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
65
Resilience: Unit (Modulus of Resilience), kJ/m3 220
59
Stiffness to Weight: Axial, points 15
7.8
Stiffness to Weight: Bending, points 72
19
Strength to Weight: Axial, points 35
9.8
Strength to Weight: Bending, points 47
12
Thermal Diffusivity, mm2/s 41
13
Thermal Shock Resistance, points 13
11

Alloy Composition

Aluminum (Al), % 3.5 to 5.0
0 to 0.010
Copper (Cu), % 0 to 0.020
84.5 to 89
Iron (Fe), % 0 to 0.0035
1.0 to 1.8
Lead (Pb), % 0
0 to 0.030
Magnesium (Mg), % 92.7 to 95.7
0
Manganese (Mn), % 0.35 to 0.7
1.0 to 1.5
Nickel (Ni), % 0 to 0.0020
9.0 to 11
Niobium (Nb), % 0
0 to 1.0
Silicon (Si), % 0.5 to 1.5
0 to 0.1
Zinc (Zn), % 0 to 0.12
0 to 0.5