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EN-MC65220 Magnesium vs. C38500 Bronze

EN-MC65220 magnesium belongs to the magnesium alloys classification, while C38500 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-MC65220 magnesium and the bottom bar is C38500 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
100
Elongation at Break, % 2.2
17
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 17
37
Shear Strength, MPa 150
230
Tensile Strength: Ultimate (UTS), MPa 270
370
Tensile Strength: Yield (Proof), MPa 200
130

Thermal Properties

Latent Heat of Fusion, J/g 340
160
Maximum Temperature: Mechanical, °C 160
110
Melting Completion (Liquidus), °C 610
890
Melting Onset (Solidus), °C 550
880
Specific Heat Capacity, J/kg-K 980
380
Thermal Conductivity, W/m-K 110
120
Thermal Expansion, µm/m-K 26
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
28
Electrical Conductivity: Equal Weight (Specific), % IACS 120
31

Otherwise Unclassified Properties

Base Metal Price, % relative 80
22
Density, g/cm3 1.9
8.1
Embodied Carbon, kg CO2/kg material 27
2.6
Embodied Energy, MJ/kg 210
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.5
48
Resilience: Unit (Modulus of Resilience), kJ/m3 450
78
Stiffness to Weight: Axial, points 13
7.0
Stiffness to Weight: Bending, points 62
19
Strength to Weight: Axial, points 40
13
Strength to Weight: Bending, points 49
14
Thermal Diffusivity, mm2/s 61
40
Thermal Shock Resistance, points 17
12

Alloy Composition


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Copper (Cu), % 0.050 to 0.1
55 to 59
Iron (Fe), % 0 to 0.010
0 to 0.35
Lead (Pb), % 0
2.5 to 3.5
Magnesium (Mg), % 93.8 to 96.8
0
Manganese (Mn), % 0 to 0.15
0
Nickel (Ni), % 0 to 0.0050
0
Silicon (Si), % 0 to 0.010
0
Silver (Ag), % 1.3 to 1.7
0
Unspecified Rare Earths, % 1.5 to 3.0
0
Zinc (Zn), % 0 to 0.2
36.7 to 42.5
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0 to 0.5