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EN-MC65120 Magnesium vs. C61800 Bronze

EN-MC65120 magnesium belongs to the magnesium alloys classification, while C61800 bronze belongs to the copper alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, 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 EN-MC65120 magnesium and the bottom bar is C61800 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
110
Elongation at Break, % 3.1
26
Fatigue Strength, MPa 80
190
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 17
44
Shear Strength, MPa 92
310
Tensile Strength: Ultimate (UTS), MPa 160
740
Tensile Strength: Yield (Proof), MPa 110
310

Thermal Properties

Latent Heat of Fusion, J/g 330
230
Maximum Temperature: Mechanical, °C 180
220
Melting Completion (Liquidus), °C 590
1050
Melting Onset (Solidus), °C 520
1040
Specific Heat Capacity, J/kg-K 970
440
Thermal Conductivity, W/m-K 100
64
Thermal Expansion, µm/m-K 26
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
13
Electrical Conductivity: Equal Weight (Specific), % IACS 120
14

Otherwise Unclassified Properties

Base Metal Price, % relative 25
28
Density, g/cm3 1.9
8.3
Embodied Carbon, kg CO2/kg material 25
3.1
Embodied Energy, MJ/kg 190
52
Embodied Water, L/kg 930
390

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.4
150
Resilience: Unit (Modulus of Resilience), kJ/m3 140
420
Stiffness to Weight: Axial, points 13
7.5
Stiffness to Weight: Bending, points 62
19
Strength to Weight: Axial, points 23
25
Strength to Weight: Bending, points 34
22
Thermal Diffusivity, mm2/s 56
18
Thermal Shock Resistance, points 9.8
26

Alloy Composition


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Aluminum (Al), % 0
8.5 to 11
Copper (Cu), % 0 to 0.030
86.9 to 91
Iron (Fe), % 0 to 0.010
0.5 to 1.5
Lead (Pb), % 0
0 to 0.020
Magnesium (Mg), % 91.8 to 95.1
0
Manganese (Mn), % 0 to 0.15
0
Nickel (Ni), % 0 to 0.0050
0
Silicon (Si), % 0 to 0.010
0 to 0.1
Unspecified Rare Earths, % 2.5 to 4.0
0
Zinc (Zn), % 2.0 to 3.0
0 to 0.020
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0 to 0.5