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AS41B Magnesium vs. C64800 Bronze

AS41B magnesium belongs to the magnesium alloys classification, while C64800 bronze belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (1, 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 C64800 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
120
Elongation at Break, % 6.0
8.0
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 18
44
Shear Strength, MPa 120
380
Tensile Strength: Ultimate (UTS), MPa 210
640
Tensile Strength: Yield (Proof), MPa 140
630

Thermal Properties

Latent Heat of Fusion, J/g 370
220
Maximum Temperature: Mechanical, °C 110
200
Melting Completion (Liquidus), °C 620
1090
Melting Onset (Solidus), °C 570
1030
Specific Heat Capacity, J/kg-K 1000
390
Thermal Conductivity, W/m-K 68
260
Thermal Expansion, µm/m-K 26
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
65
Electrical Conductivity: Equal Weight (Specific), % IACS 92
66

Otherwise Unclassified Properties

Base Metal Price, % relative 12
33
Density, g/cm3 1.7
8.9
Embodied Carbon, kg CO2/kg material 23
2.7
Embodied Energy, MJ/kg 160
43
Embodied Water, L/kg 980
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
51
Resilience: Unit (Modulus of Resilience), kJ/m3 220
1680
Stiffness to Weight: Axial, points 15
7.4
Stiffness to Weight: Bending, points 72
18
Strength to Weight: Axial, points 35
20
Strength to Weight: Bending, points 47
19
Thermal Diffusivity, mm2/s 41
75
Thermal Shock Resistance, points 13
23

Alloy Composition


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Aluminum (Al), % 3.5 to 5.0
0
Chromium (Cr), % 0
0 to 0.090
Cobalt (Co), % 0
1.0 to 3.0
Copper (Cu), % 0 to 0.020
92.4 to 98.8
Iron (Fe), % 0 to 0.0035
0 to 1.0
Lead (Pb), % 0
0 to 0.050
Magnesium (Mg), % 92.7 to 95.7
0
Manganese (Mn), % 0.35 to 0.7
0
Nickel (Ni), % 0 to 0.0020
0 to 0.5
Phosphorus (P), % 0
0 to 0.5
Silicon (Si), % 0.5 to 1.5
0.2 to 1.0
Tin (Sn), % 0
0 to 0.5
Zinc (Zn), % 0 to 0.12
0 to 0.5
Residuals, % 0
0 to 0.5