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EN-MC65120 Magnesium vs. C67400 Bronze

EN-MC65120 magnesium belongs to the magnesium alloys classification, while C67400 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-MC65120 magnesium and the bottom bar is C67400 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
110
Elongation at Break, % 3.1
22 to 28
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 17
41
Shear Strength, MPa 92
310 to 350
Tensile Strength: Ultimate (UTS), MPa 160
480 to 610
Tensile Strength: Yield (Proof), MPa 110
250 to 370

Thermal Properties

Latent Heat of Fusion, J/g 330
190
Maximum Temperature: Mechanical, °C 180
130
Melting Completion (Liquidus), °C 590
890
Melting Onset (Solidus), °C 520
870
Specific Heat Capacity, J/kg-K 970
400
Thermal Conductivity, W/m-K 100
100
Thermal Expansion, µm/m-K 26
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
23
Electrical Conductivity: Equal Weight (Specific), % IACS 120
26

Otherwise Unclassified Properties

Base Metal Price, % relative 25
23
Density, g/cm3 1.9
7.9
Embodied Carbon, kg CO2/kg material 25
2.8
Embodied Energy, MJ/kg 190
48
Embodied Water, L/kg 930
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.4
110 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 140
300 to 660
Stiffness to Weight: Axial, points 13
7.5
Stiffness to Weight: Bending, points 62
20
Strength to Weight: Axial, points 23
17 to 22
Strength to Weight: Bending, points 34
17 to 20
Thermal Diffusivity, mm2/s 56
32
Thermal Shock Resistance, points 9.8
16 to 20

Alloy Composition


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Aluminum (Al), % 0
0.5 to 2.0
Copper (Cu), % 0 to 0.030
57 to 60
Iron (Fe), % 0 to 0.010
0 to 0.35
Lead (Pb), % 0
0 to 0.5
Magnesium (Mg), % 91.8 to 95.1
0
Manganese (Mn), % 0 to 0.15
2.0 to 3.5
Nickel (Ni), % 0 to 0.0050
0 to 0.25
Silicon (Si), % 0 to 0.010
0.5 to 1.5
Tin (Sn), % 0
0 to 0.3
Unspecified Rare Earths, % 2.5 to 4.0
0
Zinc (Zn), % 2.0 to 3.0
31.1 to 40
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0 to 0.5