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EN-MC21220 Magnesium vs. C95410 Bronze

EN-MC21220 magnesium belongs to the magnesium alloys classification, while C95410 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-MC21220 magnesium and the bottom bar is C95410 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 58
160 to 200
Elastic (Young's, Tensile) Modulus, GPa 45
120
Elongation at Break, % 11
9.1 to 13
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 17
43
Tensile Strength: Ultimate (UTS), MPa 210
620 to 740
Tensile Strength: Yield (Proof), MPa 120
260 to 380

Thermal Properties

Latent Heat of Fusion, J/g 350
230
Maximum Temperature: Mechanical, °C 120
230
Melting Completion (Liquidus), °C 600
1040
Melting Onset (Solidus), °C 540
1030
Specific Heat Capacity, J/kg-K 1000
440
Thermal Conductivity, W/m-K 65
59
Thermal Expansion, µm/m-K 27
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
13
Electrical Conductivity: Equal Weight (Specific), % IACS 87
14

Otherwise Unclassified Properties

Base Metal Price, % relative 12
28
Density, g/cm3 1.7
8.2
Embodied Carbon, kg CO2/kg material 23
3.3
Embodied Energy, MJ/kg 160
54
Embodied Water, L/kg 990
390

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20
57 to 64
Resilience: Unit (Modulus of Resilience), kJ/m3 160
280 to 630
Stiffness to Weight: Axial, points 15
7.8
Stiffness to Weight: Bending, points 71
20
Strength to Weight: Axial, points 34
21 to 25
Strength to Weight: Bending, points 46
20 to 22
Thermal Diffusivity, mm2/s 39
16
Thermal Shock Resistance, points 12
22 to 26

Alloy Composition


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Aluminum (Al), % 4.4 to 5.5
10 to 11.5
Copper (Cu), % 0 to 0.010
83 to 85.5
Iron (Fe), % 0 to 0.0050
3.0 to 5.0
Magnesium (Mg), % 93.5 to 95.5
0
Manganese (Mn), % 0.1 to 0.6
0 to 0.5
Nickel (Ni), % 0 to 0.0020
1.5 to 2.5
Silicon (Si), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.3
0
Residuals, % 0 to 0.010
0 to 0.5