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EN-MC21220 Magnesium vs. C50100 Bronze

EN-MC21220 magnesium belongs to the magnesium alloys classification, while C50100 bronze belongs to the copper alloys. There are 29 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 C50100 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
120
Elongation at Break, % 11
40
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 17
43
Shear Strength, MPa 120
180
Tensile Strength: Ultimate (UTS), MPa 210
270
Tensile Strength: Yield (Proof), MPa 120
82

Thermal Properties

Latent Heat of Fusion, J/g 350
210
Maximum Temperature: Mechanical, °C 120
200
Melting Completion (Liquidus), °C 600
1080
Melting Onset (Solidus), °C 540
1070
Specific Heat Capacity, J/kg-K 1000
380
Thermal Conductivity, W/m-K 65
230
Thermal Expansion, µm/m-K 27
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
55
Electrical Conductivity: Equal Weight (Specific), % IACS 87
55

Otherwise Unclassified Properties

Base Metal Price, % relative 12
31
Density, g/cm3 1.7
8.9
Embodied Carbon, kg CO2/kg material 23
2.6
Embodied Energy, MJ/kg 160
42
Embodied Water, L/kg 990
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20
82
Resilience: Unit (Modulus of Resilience), kJ/m3 160
29
Stiffness to Weight: Axial, points 15
7.2
Stiffness to Weight: Bending, points 71
18
Strength to Weight: Axial, points 34
8.3
Strength to Weight: Bending, points 46
10
Thermal Diffusivity, mm2/s 39
66
Thermal Shock Resistance, points 12
9.5

Alloy Composition


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Aluminum (Al), % 4.4 to 5.5
0
Copper (Cu), % 0 to 0.010
98.6 to 99.49
Iron (Fe), % 0 to 0.0050
0 to 0.050
Lead (Pb), % 0
0 to 0.050
Magnesium (Mg), % 93.5 to 95.5
0
Manganese (Mn), % 0.1 to 0.6
0
Nickel (Ni), % 0 to 0.0020
0
Phosphorus (P), % 0
0.010 to 0.050
Silicon (Si), % 0 to 0.1
0
Tin (Sn), % 0
0.5 to 0.8
Zinc (Zn), % 0 to 0.3
0
Residuals, % 0 to 0.010
0 to 0.5