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AS41B Magnesium vs. C86800 Bronze

AS41B magnesium belongs to the magnesium alloys classification, while C86800 bronze belongs to the copper alloys. There are 26 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 AS41B magnesium and the bottom bar is C86800 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
110
Elongation at Break, % 6.0
22
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 18
42
Tensile Strength: Ultimate (UTS), MPa 210
570
Tensile Strength: Yield (Proof), MPa 140
260

Thermal Properties

Latent Heat of Fusion, J/g 370
180
Maximum Temperature: Mechanical, °C 110
140
Melting Completion (Liquidus), °C 620
900
Melting Onset (Solidus), °C 570
880
Specific Heat Capacity, J/kg-K 1000
400
Thermal Expansion, µm/m-K 26
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
9.0
Electrical Conductivity: Equal Weight (Specific), % IACS 92
10

Otherwise Unclassified Properties

Base Metal Price, % relative 12
24
Density, g/cm3 1.7
7.9
Embodied Carbon, kg CO2/kg material 23
3.0
Embodied Energy, MJ/kg 160
51
Embodied Water, L/kg 980
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
100
Resilience: Unit (Modulus of Resilience), kJ/m3 220
310
Stiffness to Weight: Axial, points 15
7.7
Stiffness to Weight: Bending, points 72
20
Strength to Weight: Axial, points 35
20
Strength to Weight: Bending, points 47
19
Thermal Shock Resistance, points 13
18

Alloy Composition


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Aluminum (Al), % 3.5 to 5.0
0 to 2.0
Copper (Cu), % 0 to 0.020
53.5 to 57
Iron (Fe), % 0 to 0.0035
1.0 to 2.5
Lead (Pb), % 0
0 to 0.2
Magnesium (Mg), % 92.7 to 95.7
0
Manganese (Mn), % 0.35 to 0.7
2.5 to 4.0
Nickel (Ni), % 0 to 0.0020
2.5 to 4.0
Silicon (Si), % 0.5 to 1.5
0
Tin (Sn), % 0
0 to 1.0
Zinc (Zn), % 0 to 0.12
28.3 to 40.5
Residuals, % 0
0 to 1.0