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EN-MC65120 Magnesium vs. C94300 Bronze

EN-MC65120 magnesium belongs to the magnesium alloys classification, while C94300 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-MC65120 magnesium and the bottom bar is C94300 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
87
Elongation at Break, % 3.1
9.7
Poisson's Ratio 0.29
0.36
Shear Modulus, GPa 17
32
Tensile Strength: Ultimate (UTS), MPa 160
180
Tensile Strength: Yield (Proof), MPa 110
120

Thermal Properties

Latent Heat of Fusion, J/g 330
150
Maximum Temperature: Mechanical, °C 180
110
Melting Completion (Liquidus), °C 590
820
Melting Onset (Solidus), °C 520
760
Specific Heat Capacity, J/kg-K 970
320
Thermal Conductivity, W/m-K 100
63
Thermal Expansion, µm/m-K 26
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
9.0
Electrical Conductivity: Equal Weight (Specific), % IACS 120
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 25
28
Density, g/cm3 1.9
9.3
Embodied Carbon, kg CO2/kg material 25
2.9
Embodied Energy, MJ/kg 190
47
Embodied Water, L/kg 930
370

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.4
15
Resilience: Unit (Modulus of Resilience), kJ/m3 140
77
Stiffness to Weight: Axial, points 13
5.2
Stiffness to Weight: Bending, points 62
16
Strength to Weight: Axial, points 23
5.2
Strength to Weight: Bending, points 34
7.4
Thermal Diffusivity, mm2/s 56
21
Thermal Shock Resistance, points 9.8
7.1

Alloy Composition


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Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.8
Copper (Cu), % 0 to 0.030
67 to 72
Iron (Fe), % 0 to 0.010
0 to 0.15
Lead (Pb), % 0
23 to 27
Magnesium (Mg), % 91.8 to 95.1
0
Manganese (Mn), % 0 to 0.15
0
Nickel (Ni), % 0 to 0.0050
0 to 1.0
Phosphorus (P), % 0
0 to 1.5
Silicon (Si), % 0 to 0.010
0 to 0.0050
Sulfur (S), % 0
0 to 0.080
Tin (Sn), % 0
4.5 to 6.0
Unspecified Rare Earths, % 2.5 to 4.0
0
Zinc (Zn), % 2.0 to 3.0
0 to 0.8
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0 to 1.0