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EN-MC21310 Magnesium vs. CC491K Bronze

EN-MC21310 magnesium belongs to the magnesium alloys classification, while CC491K 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-MC21310 magnesium and the bottom bar is CC491K bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 60
73
Elastic (Young's, Tensile) Modulus, GPa 45
110
Elongation at Break, % 9.0
13
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 17
40
Tensile Strength: Ultimate (UTS), MPa 200
260
Tensile Strength: Yield (Proof), MPa 120
120

Thermal Properties

Latent Heat of Fusion, J/g 360
190
Maximum Temperature: Mechanical, °C 100
160
Melting Completion (Liquidus), °C 600
980
Melting Onset (Solidus), °C 560
900
Specific Heat Capacity, J/kg-K 1000
370
Thermal Conductivity, W/m-K 89
71
Thermal Expansion, µm/m-K 26
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 22
15
Electrical Conductivity: Equal Weight (Specific), % IACS 120
15

Otherwise Unclassified Properties

Base Metal Price, % relative 12
31
Density, g/cm3 1.6
8.9
Embodied Carbon, kg CO2/kg material 23
3.1
Embodied Energy, MJ/kg 160
51
Embodied Water, L/kg 970
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 16
27
Resilience: Unit (Modulus of Resilience), kJ/m3 160
67
Stiffness to Weight: Axial, points 15
6.7
Stiffness to Weight: Bending, points 73
18
Strength to Weight: Axial, points 34
8.1
Strength to Weight: Bending, points 47
10
Thermal Diffusivity, mm2/s 55
22
Thermal Shock Resistance, points 12
9.3

Alloy Composition


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Aluminum (Al), % 1.8 to 2.6
0 to 0.010
Antimony (Sb), % 0
0 to 0.25
Copper (Cu), % 0 to 0.010
81 to 87
Iron (Fe), % 0 to 0.0050
0 to 0.3
Lead (Pb), % 0
4.0 to 6.0
Magnesium (Mg), % 95.2 to 97.4
0
Manganese (Mn), % 0.1 to 0.7
0
Nickel (Ni), % 0 to 0.0020
0 to 2.0
Phosphorus (P), % 0
0 to 0.1
Silicon (Si), % 0.7 to 1.2
0 to 0.010
Sulfur (S), % 0
0 to 0.1
Tin (Sn), % 0
4.0 to 6.0
Zinc (Zn), % 0 to 0.2
4.0 to 6.0
Residuals, % 0 to 0.010
0