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EN-MC21230 Magnesium vs. C61400 Bronze

EN-MC21230 magnesium belongs to the magnesium alloys classification, while C61400 bronze belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, 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 C61400 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
110
Elongation at Break, % 10
34 to 40
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 18
43
Shear Strength, MPa 130
370 to 380
Tensile Strength: Ultimate (UTS), MPa 220
540 to 570
Tensile Strength: Yield (Proof), MPa 140
220 to 270

Thermal Properties

Latent Heat of Fusion, J/g 350
220
Maximum Temperature: Mechanical, °C 120
220
Melting Completion (Liquidus), °C 600
1050
Melting Onset (Solidus), °C 520
1040
Specific Heat Capacity, J/kg-K 1000
420
Thermal Conductivity, W/m-K 72
67
Thermal Expansion, µm/m-K 27
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
14
Electrical Conductivity: Equal Weight (Specific), % IACS 63
15

Otherwise Unclassified Properties

Base Metal Price, % relative 12
28
Density, g/cm3 1.7
8.5
Embodied Carbon, kg CO2/kg material 23
3.0
Embodied Energy, MJ/kg 160
48
Embodied Water, L/kg 990
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
160 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 200
210 to 310
Stiffness to Weight: Axial, points 15
7.5
Stiffness to Weight: Bending, points 71
19
Strength to Weight: Axial, points 36
18 to 19
Strength to Weight: Bending, points 48
17 to 18
Thermal Diffusivity, mm2/s 43
19
Thermal Shock Resistance, points 13
18 to 20

Alloy Composition

Aluminum (Al), % 5.5 to 8.5
6.0 to 8.0
Copper (Cu), % 0 to 0.010
86 to 92.5
Iron (Fe), % 0 to 0.0050
1.5 to 3.5
Lead (Pb), % 0
0 to 0.010
Magnesium (Mg), % 90.5 to 94.4
0
Manganese (Mn), % 0.1 to 0.6
0 to 1.0
Nickel (Ni), % 0 to 0.0020
0
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.3
0 to 1.0
Residuals, % 0 to 0.010
0 to 0.5