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AS41B Magnesium vs. CC334G Bronze

AS41B magnesium belongs to the magnesium alloys classification, while CC334G 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 AS41B magnesium and the bottom bar is CC334G bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
120
Elongation at Break, % 6.0
5.6
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 18
45
Tensile Strength: Ultimate (UTS), MPa 210
810
Tensile Strength: Yield (Proof), MPa 140
410

Thermal Properties

Latent Heat of Fusion, J/g 370
240
Maximum Temperature: Mechanical, °C 110
240
Melting Completion (Liquidus), °C 620
1080
Melting Onset (Solidus), °C 570
1020
Specific Heat Capacity, J/kg-K 1000
450
Thermal Conductivity, W/m-K 68
41
Thermal Expansion, µm/m-K 26
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 92
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 12
29
Density, g/cm3 1.7
8.2
Embodied Carbon, kg CO2/kg material 23
3.6
Embodied Energy, MJ/kg 160
59
Embodied Water, L/kg 980
390

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
38
Resilience: Unit (Modulus of Resilience), kJ/m3 220
710
Stiffness to Weight: Axial, points 15
8.1
Stiffness to Weight: Bending, points 72
20
Strength to Weight: Axial, points 35
28
Strength to Weight: Bending, points 47
24
Thermal Diffusivity, mm2/s 41
11
Thermal Shock Resistance, points 13
28

Alloy Composition

Aluminum (Al), % 3.5 to 5.0
10 to 12
Copper (Cu), % 0 to 0.020
72 to 84.5
Iron (Fe), % 0 to 0.0035
3.0 to 7.0
Lead (Pb), % 0
0 to 0.050
Magnesium (Mg), % 92.7 to 95.7
0 to 0.050
Manganese (Mn), % 0.35 to 0.7
0 to 2.5
Nickel (Ni), % 0 to 0.0020
4.0 to 7.5
Silicon (Si), % 0.5 to 1.5
0 to 0.1
Tin (Sn), % 0
0 to 0.2
Zinc (Zn), % 0 to 0.12
0 to 0.5