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AZ91A Magnesium vs. CC382H Copper-nickel

AZ91A magnesium belongs to the magnesium alloys classification, while CC382H copper-nickel 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 AZ91A magnesium and the bottom bar is CC382H copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 63
130
Elastic (Young's, Tensile) Modulus, GPa 46
140
Elongation at Break, % 5.0
20
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 18
53
Tensile Strength: Ultimate (UTS), MPa 240
490
Tensile Strength: Yield (Proof), MPa 160
290

Thermal Properties

Latent Heat of Fusion, J/g 360
240
Maximum Temperature: Mechanical, °C 130
260
Melting Completion (Liquidus), °C 600
1180
Melting Onset (Solidus), °C 470
1120
Specific Heat Capacity, J/kg-K 990
410
Thermal Conductivity, W/m-K 73
30
Thermal Expansion, µm/m-K 26
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
5.5
Electrical Conductivity: Equal Weight (Specific), % IACS 52
5.6

Otherwise Unclassified Properties

Base Metal Price, % relative 12
41
Density, g/cm3 1.7
8.9
Embodied Carbon, kg CO2/kg material 22
5.2
Embodied Energy, MJ/kg 160
76
Embodied Water, L/kg 990
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
85
Resilience: Unit (Modulus of Resilience), kJ/m3 280
290
Stiffness to Weight: Axial, points 15
8.8
Stiffness to Weight: Bending, points 69
20
Strength to Weight: Axial, points 38
15
Strength to Weight: Bending, points 49
16
Thermal Diffusivity, mm2/s 42
8.2
Thermal Shock Resistance, points 14
16

Alloy Composition

Aluminum (Al), % 8.3 to 9.7
0 to 0.010
Bismuth (Bi), % 0
0 to 0.0020
Boron (B), % 0
0 to 0.010
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
1.5 to 2.0
Copper (Cu), % 0 to 0.1
62.8 to 68.4
Iron (Fe), % 0
0.5 to 1.0
Lead (Pb), % 0
0 to 0.0050
Magnesium (Mg), % 88.2 to 91.2
0 to 0.010
Manganese (Mn), % 0.13 to 0.5
0.5 to 1.0
Nickel (Ni), % 0 to 0.030
29 to 32
Phosphorus (P), % 0
0 to 0.010
Selenium (Se), % 0
0 to 0.0050
Silicon (Si), % 0 to 0.5
0.15 to 0.5
Sulfur (S), % 0
0 to 0.010
Tellurium (Te), % 0
0 to 0.0050
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0.35 to 1.0
0 to 0.2
Zirconium (Zr), % 0
0 to 0.15