MakeItFrom.com
Menu (ESC)

AZ81A Magnesium vs. C82400 Copper

AZ81A magnesium belongs to the magnesium alloys classification, while C82400 copper belongs to the copper alloys. There are 27 material properties with values for both materials. Properties with values for just one material (6, 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 AZ81A magnesium and the bottom bar is C82400 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 46
120
Elongation at Break, % 3.0 to 8.8
1.0 to 20
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 18
45
Tensile Strength: Ultimate (UTS), MPa 160 to 240
500 to 1030
Tensile Strength: Yield (Proof), MPa 84
260 to 970

Thermal Properties

Latent Heat of Fusion, J/g 350
230
Maximum Temperature: Mechanical, °C 130
270
Melting Completion (Liquidus), °C 600
1000
Melting Onset (Solidus), °C 500
900
Specific Heat Capacity, J/kg-K 990
380
Thermal Conductivity, W/m-K 84
130
Thermal Expansion, µm/m-K 27
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
25
Electrical Conductivity: Equal Weight (Specific), % IACS 65
26

Otherwise Unclassified Properties

Density, g/cm3 1.7
8.8
Embodied Carbon, kg CO2/kg material 23
8.9
Embodied Energy, MJ/kg 160
140
Embodied Water, L/kg 990
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.0 to 17
10 to 83
Resilience: Unit (Modulus of Resilience), kJ/m3 77 to 78
270 to 3870
Stiffness to Weight: Axial, points 15
7.6
Stiffness to Weight: Bending, points 70
19
Strength to Weight: Axial, points 26 to 39
16 to 33
Strength to Weight: Bending, points 38 to 50
16 to 26
Thermal Diffusivity, mm2/s 50
39
Thermal Shock Resistance, points 9.1 to 14
17 to 36

Alloy Composition

Aluminum (Al), % 7.0 to 8.1
0 to 0.15
Beryllium (Be), % 0
1.6 to 1.9
Chromium (Cr), % 0
0 to 0.1
Cobalt (Co), % 0
0.2 to 0.65
Copper (Cu), % 0 to 0.1
96 to 98.2
Iron (Fe), % 0
0 to 0.2
Lead (Pb), % 0
0 to 0.020
Magnesium (Mg), % 89.8 to 92.5
0
Manganese (Mn), % 0.13 to 0.35
0
Nickel (Ni), % 0 to 0.010
0 to 0.2
Silicon (Si), % 0 to 0.3
0
Tin (Sn), % 0
0 to 0.1
Titanium (Ti), % 0
0 to 0.12
Zinc (Zn), % 0.4 to 1.0
0 to 0.1
Residuals, % 0 to 0.3
0 to 0.5

Comparable Variants