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EN-MC65120 Magnesium vs. C22000 Bronze

EN-MC65120 magnesium belongs to the magnesium alloys classification, while C22000 bronze belongs to the copper alloys. There are 29 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 EN-MC65120 magnesium and the bottom bar is C22000 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
110
Elongation at Break, % 3.1
1.9 to 45
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
42
Shear Strength, MPa 92
200 to 300
Tensile Strength: Ultimate (UTS), MPa 160
260 to 520
Tensile Strength: Yield (Proof), MPa 110
69 to 500

Thermal Properties

Latent Heat of Fusion, J/g 330
200
Maximum Temperature: Mechanical, °C 180
180
Melting Completion (Liquidus), °C 590
1040
Melting Onset (Solidus), °C 520
1020
Specific Heat Capacity, J/kg-K 970
390
Thermal Conductivity, W/m-K 100
190
Thermal Expansion, µm/m-K 26
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
44
Electrical Conductivity: Equal Weight (Specific), % IACS 120
45

Otherwise Unclassified Properties

Base Metal Price, % relative 25
29
Density, g/cm3 1.9
8.7
Embodied Carbon, kg CO2/kg material 25
2.6
Embodied Energy, MJ/kg 190
42
Embodied Water, L/kg 930
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.4
3.7 to 230
Resilience: Unit (Modulus of Resilience), kJ/m3 140
21 to 1110
Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 62
18
Strength to Weight: Axial, points 23
8.1 to 17
Strength to Weight: Bending, points 34
10 to 17
Thermal Diffusivity, mm2/s 56
56
Thermal Shock Resistance, points 9.8
8.8 to 18

Alloy Composition


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Copper (Cu), % 0 to 0.030
89 to 91
Iron (Fe), % 0 to 0.010
0 to 0.050
Lead (Pb), % 0
0 to 0.050
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
Unspecified Rare Earths, % 2.5 to 4.0
0
Zinc (Zn), % 2.0 to 3.0
8.7 to 11
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0 to 0.2