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EN-MC21210 Magnesium vs. C95820 Bronze

EN-MC21210 magnesium belongs to the magnesium alloys classification, while C95820 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 C95820 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
120
Elongation at Break, % 14
15
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 17
44
Tensile Strength: Ultimate (UTS), MPa 190
730
Tensile Strength: Yield (Proof), MPa 90
310

Thermal Properties

Latent Heat of Fusion, J/g 350
230
Maximum Temperature: Mechanical, °C 100
230
Melting Completion (Liquidus), °C 600
1080
Melting Onset (Solidus), °C 570
1020
Specific Heat Capacity, J/kg-K 1000
440
Thermal Conductivity, W/m-K 120
38
Thermal Expansion, µm/m-K 27
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 130
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 12
29
Density, g/cm3 1.6
8.3
Embodied Carbon, kg CO2/kg material 24
3.5
Embodied Energy, MJ/kg 160
56
Embodied Water, L/kg 980
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 22
86
Resilience: Unit (Modulus of Resilience), kJ/m3 92
400
Stiffness to Weight: Axial, points 15
8.0
Stiffness to Weight: Bending, points 72
20
Strength to Weight: Axial, points 32
24
Strength to Weight: Bending, points 44
22
Thermal Diffusivity, mm2/s 76
11
Thermal Shock Resistance, points 11
25

Alloy Composition


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Aluminum (Al), % 1.6 to 2.6
9.0 to 10
Copper (Cu), % 0 to 0.010
77.5 to 82.5
Iron (Fe), % 0 to 0.0050
4.0 to 5.0
Lead (Pb), % 0
0 to 0.020
Magnesium (Mg), % 96.3 to 98.3
0
Manganese (Mn), % 0.1 to 0.7
0 to 1.5
Nickel (Ni), % 0 to 0.0020
4.5 to 5.8
Silicon (Si), % 0 to 0.1
0 to 0.1
Tin (Sn), % 0
0 to 0.020
Zinc (Zn), % 0 to 0.2
0 to 0.2
Residuals, % 0 to 0.010
0 to 0.8