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EN-MC65120 Magnesium vs. C93400 Bronze

EN-MC65120 magnesium belongs to the magnesium alloys classification, while C93400 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 C93400 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
100
Elongation at Break, % 3.1
9.1
Poisson's Ratio 0.29
0.35
Shear Modulus, GPa 17
38
Tensile Strength: Ultimate (UTS), MPa 160
270
Tensile Strength: Yield (Proof), MPa 110
150

Thermal Properties

Latent Heat of Fusion, J/g 330
180
Maximum Temperature: Mechanical, °C 180
150
Melting Completion (Liquidus), °C 590
950
Melting Onset (Solidus), °C 520
850
Specific Heat Capacity, J/kg-K 970
350
Thermal Conductivity, W/m-K 100
58
Thermal Expansion, µm/m-K 26
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
12
Electrical Conductivity: Equal Weight (Specific), % IACS 120
12

Otherwise Unclassified Properties

Base Metal Price, % relative 25
32
Density, g/cm3 1.9
8.9
Embodied Carbon, kg CO2/kg material 25
3.3
Embodied Energy, MJ/kg 190
54
Embodied Water, L/kg 930
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.4
21
Resilience: Unit (Modulus of Resilience), kJ/m3 140
120
Stiffness to Weight: Axial, points 13
6.3
Stiffness to Weight: Bending, points 62
17
Strength to Weight: Axial, points 23
8.3
Strength to Weight: Bending, points 34
10
Thermal Diffusivity, mm2/s 56
18
Thermal Shock Resistance, points 9.8
10

Alloy Composition

Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.5
Copper (Cu), % 0 to 0.030
82 to 85
Iron (Fe), % 0 to 0.010
0 to 0.2
Lead (Pb), % 0
7.0 to 9.0
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
7.0 to 9.0
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
0 to 1.0