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EN-MC21220 Magnesium vs. C60800 Bronze

EN-MC21220 magnesium belongs to the magnesium alloys classification, while C60800 bronze belongs to the copper alloys. There are 29 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-MC21220 magnesium and the bottom bar is C60800 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
110
Elongation at Break, % 11
55
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 17
46
Shear Strength, MPa 120
290
Tensile Strength: Ultimate (UTS), MPa 210
390
Tensile Strength: Yield (Proof), MPa 120
150

Thermal Properties

Latent Heat of Fusion, J/g 350
220
Maximum Temperature: Mechanical, °C 120
210
Melting Completion (Liquidus), °C 600
1060
Melting Onset (Solidus), °C 540
1050
Specific Heat Capacity, J/kg-K 1000
410
Thermal Conductivity, W/m-K 65
80
Thermal Expansion, µm/m-K 27
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
17
Electrical Conductivity: Equal Weight (Specific), % IACS 87
18

Otherwise Unclassified Properties

Base Metal Price, % relative 12
29
Density, g/cm3 1.7
8.6
Embodied Carbon, kg CO2/kg material 23
2.9
Embodied Energy, MJ/kg 160
48
Embodied Water, L/kg 990
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20
170
Resilience: Unit (Modulus of Resilience), kJ/m3 160
94
Stiffness to Weight: Axial, points 15
7.3
Stiffness to Weight: Bending, points 71
19
Strength to Weight: Axial, points 34
13
Strength to Weight: Bending, points 46
14
Thermal Diffusivity, mm2/s 39
23
Thermal Shock Resistance, points 12
14

Alloy Composition

Aluminum (Al), % 4.4 to 5.5
5.0 to 6.5
Arsenic (As), % 0
0.020 to 0.35
Copper (Cu), % 0 to 0.010
92.5 to 95
Iron (Fe), % 0 to 0.0050
0 to 0.1
Lead (Pb), % 0
0 to 0.1
Magnesium (Mg), % 93.5 to 95.5
0
Manganese (Mn), % 0.1 to 0.6
0
Nickel (Ni), % 0 to 0.0020
0
Silicon (Si), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.3
0
Residuals, % 0
0 to 0.5