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EN-MC21230 Magnesium vs. C63020 Bronze

EN-MC21230 magnesium belongs to the magnesium alloys classification, while C63020 bronze belongs to the copper alloys. There are 27 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-MC21230 magnesium and the bottom bar is C63020 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
120
Elongation at Break, % 10
6.8
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 18
44
Shear Strength, MPa 130
600
Tensile Strength: Ultimate (UTS), MPa 220
1020
Tensile Strength: Yield (Proof), MPa 140
740

Thermal Properties

Latent Heat of Fusion, J/g 350
230
Maximum Temperature: Mechanical, °C 120
230
Melting Completion (Liquidus), °C 600
1070
Melting Onset (Solidus), °C 520
1020
Specific Heat Capacity, J/kg-K 1000
450
Thermal Conductivity, W/m-K 72
40
Thermal Expansion, µm/m-K 27
18

Otherwise Unclassified Properties

Base Metal Price, % relative 12
29
Density, g/cm3 1.7
8.2
Embodied Carbon, kg CO2/kg material 23
3.6
Embodied Energy, MJ/kg 160
58
Embodied Water, L/kg 990
390

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
63
Resilience: Unit (Modulus of Resilience), kJ/m3 200
2320
Stiffness to Weight: Axial, points 15
8.0
Stiffness to Weight: Bending, points 71
20
Strength to Weight: Axial, points 36
34
Strength to Weight: Bending, points 48
27
Thermal Diffusivity, mm2/s 43
11
Thermal Shock Resistance, points 13
35

Alloy Composition

Aluminum (Al), % 5.5 to 8.5
10 to 11
Chromium (Cr), % 0
0 to 0.050
Cobalt (Co), % 0
0 to 0.2
Copper (Cu), % 0 to 0.010
74.7 to 81.8
Iron (Fe), % 0 to 0.0050
4.0 to 5.5
Lead (Pb), % 0
0 to 0.030
Magnesium (Mg), % 90.5 to 94.4
0
Manganese (Mn), % 0.1 to 0.6
0 to 1.5
Nickel (Ni), % 0 to 0.0020
4.2 to 6.0
Silicon (Si), % 0 to 0.1
0
Tin (Sn), % 0
0 to 0.25
Zinc (Zn), % 0 to 0.3
0 to 0.3
Residuals, % 0 to 0.010
0 to 0.5