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AS41A Magnesium vs. CC330G Bronze

AS41A magnesium belongs to the magnesium alloys classification, while CC330G bronze 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 AS41A magnesium and the bottom bar is CC330G bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
110
Elongation at Break, % 11
20
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 17
42
Tensile Strength: Ultimate (UTS), MPa 230
530
Tensile Strength: Yield (Proof), MPa 140
190

Thermal Properties

Latent Heat of Fusion, J/g 370
230
Maximum Temperature: Mechanical, °C 110
220
Melting Completion (Liquidus), °C 620
1050
Melting Onset (Solidus), °C 570
1000
Specific Heat Capacity, J/kg-K 1000
430
Thermal Conductivity, W/m-K 68
62
Thermal Expansion, µm/m-K 26
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
14
Electrical Conductivity: Equal Weight (Specific), % IACS 92
15

Otherwise Unclassified Properties

Base Metal Price, % relative 12
29
Density, g/cm3 1.6
8.4
Embodied Carbon, kg CO2/kg material 23
3.2
Embodied Energy, MJ/kg 160
52
Embodied Water, L/kg 980
390

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
82
Resilience: Unit (Modulus of Resilience), kJ/m3 220
170
Stiffness to Weight: Axial, points 15
7.5
Stiffness to Weight: Bending, points 72
19
Strength to Weight: Axial, points 38
18
Strength to Weight: Bending, points 50
17
Thermal Diffusivity, mm2/s 41
17
Thermal Shock Resistance, points 14
19

Alloy Composition

Aluminum (Al), % 3.5 to 5.0
8.0 to 10.5
Copper (Cu), % 0 to 0.060
87 to 92
Iron (Fe), % 0
0 to 1.2
Lead (Pb), % 0
0 to 0.3
Magnesium (Mg), % 92.8 to 95.8
0
Manganese (Mn), % 0.2 to 0.5
0 to 0.5
Nickel (Ni), % 0 to 0.030
0 to 1.0
Silicon (Si), % 0.5 to 1.5
0 to 0.2
Tin (Sn), % 0
0 to 0.3
Zinc (Zn), % 0 to 0.12
0 to 0.5