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EN-MC21230 Magnesium vs. C64210 Bronze

EN-MC21230 magnesium belongs to the magnesium alloys classification, while C64210 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-MC21230 magnesium and the bottom bar is C64210 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
110
Elongation at Break, % 10
35
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 18
42
Shear Strength, MPa 130
380
Tensile Strength: Ultimate (UTS), MPa 220
570
Tensile Strength: Yield (Proof), MPa 140
290

Thermal Properties

Latent Heat of Fusion, J/g 350
250
Maximum Temperature: Mechanical, °C 120
210
Melting Completion (Liquidus), °C 600
1040
Melting Onset (Solidus), °C 520
990
Specific Heat Capacity, J/kg-K 1000
430
Thermal Conductivity, W/m-K 72
48
Thermal Expansion, µm/m-K 27
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
13
Electrical Conductivity: Equal Weight (Specific), % IACS 63
14

Otherwise Unclassified Properties

Base Metal Price, % relative 12
29
Density, g/cm3 1.7
8.4
Embodied Carbon, kg CO2/kg material 23
3.0
Embodied Energy, MJ/kg 160
49
Embodied Water, L/kg 990
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
170
Resilience: Unit (Modulus of Resilience), kJ/m3 200
360
Stiffness to Weight: Axial, points 15
7.4
Stiffness to Weight: Bending, points 71
19
Strength to Weight: Axial, points 36
19
Strength to Weight: Bending, points 48
18
Thermal Diffusivity, mm2/s 43
13
Thermal Shock Resistance, points 13
21

Alloy Composition

Aluminum (Al), % 5.5 to 8.5
6.3 to 7.0
Arsenic (As), % 0
0 to 0.15
Copper (Cu), % 0 to 0.010
89 to 92.2
Iron (Fe), % 0 to 0.0050
0 to 0.3
Lead (Pb), % 0
0 to 0.050
Magnesium (Mg), % 90.5 to 94.4
0
Manganese (Mn), % 0.1 to 0.6
0 to 0.1
Nickel (Ni), % 0 to 0.0020
0 to 0.25
Silicon (Si), % 0 to 0.1
1.5 to 2.0
Tin (Sn), % 0
0 to 0.2
Zinc (Zn), % 0 to 0.3
0 to 0.5
Residuals, % 0 to 0.010
0 to 0.5