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EN-MC21220 Magnesium vs. C87610 Bronze

EN-MC21220 magnesium belongs to the magnesium alloys classification, while C87610 bronze belongs to the copper alloys. There are 28 material properties with values for both materials. Properties with values for just one material (3, 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 C87610 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
110
Elongation at Break, % 11
22
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 17
43
Tensile Strength: Ultimate (UTS), MPa 210
350
Tensile Strength: Yield (Proof), MPa 120
140

Thermal Properties

Latent Heat of Fusion, J/g 350
270
Maximum Temperature: Mechanical, °C 120
190
Melting Completion (Liquidus), °C 600
970
Melting Onset (Solidus), °C 540
820
Specific Heat Capacity, J/kg-K 1000
410
Thermal Conductivity, W/m-K 65
28
Thermal Expansion, µm/m-K 27
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
6.1
Electrical Conductivity: Equal Weight (Specific), % IACS 87
6.4

Otherwise Unclassified Properties

Base Metal Price, % relative 12
29
Density, g/cm3 1.7
8.5
Embodied Carbon, kg CO2/kg material 23
2.6
Embodied Energy, MJ/kg 160
43
Embodied Water, L/kg 990
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20
62
Resilience: Unit (Modulus of Resilience), kJ/m3 160
88
Stiffness to Weight: Axial, points 15
7.4
Stiffness to Weight: Bending, points 71
19
Strength to Weight: Axial, points 34
11
Strength to Weight: Bending, points 46
13
Thermal Diffusivity, mm2/s 39
8.1
Thermal Shock Resistance, points 12
13

Alloy Composition

Aluminum (Al), % 4.4 to 5.5
0
Copper (Cu), % 0 to 0.010
90 to 94
Iron (Fe), % 0 to 0.0050
0 to 0.2
Lead (Pb), % 0
0 to 0.2
Magnesium (Mg), % 93.5 to 95.5
0
Manganese (Mn), % 0.1 to 0.6
0 to 0.25
Nickel (Ni), % 0 to 0.0020
0
Silicon (Si), % 0 to 0.1
3.0 to 5.0
Zinc (Zn), % 0 to 0.3
3.0 to 5.0
Residuals, % 0
0 to 0.5