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EN-MC21210 Magnesium vs. C87700 Bronze

EN-MC21210 magnesium belongs to the magnesium alloys classification, while C87700 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-MC21210 magnesium and the bottom bar is C87700 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
110
Elongation at Break, % 14
3.6
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
42
Tensile Strength: Ultimate (UTS), MPa 190
300
Tensile Strength: Yield (Proof), MPa 90
120

Thermal Properties

Latent Heat of Fusion, J/g 350
250
Maximum Temperature: Mechanical, °C 100
180
Melting Completion (Liquidus), °C 600
980
Melting Onset (Solidus), °C 570
900
Specific Heat Capacity, J/kg-K 1000
400
Thermal Conductivity, W/m-K 120
120
Thermal Expansion, µm/m-K 27
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24
45
Electrical Conductivity: Equal Weight (Specific), % IACS 130
48

Otherwise Unclassified Properties

Base Metal Price, % relative 12
29
Density, g/cm3 1.6
8.5
Embodied Carbon, kg CO2/kg material 24
2.7
Embodied Energy, MJ/kg 160
45
Embodied Water, L/kg 980
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 22
8.6
Resilience: Unit (Modulus of Resilience), kJ/m3 92
64
Stiffness to Weight: Axial, points 15
7.4
Stiffness to Weight: Bending, points 72
19
Strength to Weight: Axial, points 32
9.8
Strength to Weight: Bending, points 44
12
Thermal Diffusivity, mm2/s 76
34
Thermal Shock Resistance, points 11
11

Alloy Composition


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Aluminum (Al), % 1.6 to 2.6
0
Antimony (Sb), % 0
0 to 0.1
Copper (Cu), % 0 to 0.010
87.5 to 90.5
Iron (Fe), % 0 to 0.0050
0 to 0.5
Lead (Pb), % 0
0 to 0.090
Magnesium (Mg), % 96.3 to 98.3
0
Manganese (Mn), % 0.1 to 0.7
0 to 0.8
Nickel (Ni), % 0 to 0.0020
0 to 0.25
Phosphorus (P), % 0
0 to 0.15
Silicon (Si), % 0 to 0.1
2.5 to 3.5
Tin (Sn), % 0
0 to 2.0
Zinc (Zn), % 0 to 0.2
7.0 to 9.0
Residuals, % 0 to 0.010
0 to 0.8