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EN-MC21210 Magnesium vs. C94900 Bronze

EN-MC21210 magnesium belongs to the magnesium alloys classification, while C94900 bronze belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (5, 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 C94900 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
110
Elongation at Break, % 14
17
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 17
41
Tensile Strength: Ultimate (UTS), MPa 190
300
Tensile Strength: Yield (Proof), MPa 90
130

Thermal Properties

Latent Heat of Fusion, J/g 350
190
Maximum Temperature: Mechanical, °C 100
170
Melting Completion (Liquidus), °C 600
980
Melting Onset (Solidus), °C 570
910
Specific Heat Capacity, J/kg-K 1000
370
Thermal Expansion, µm/m-K 27
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24
14
Electrical Conductivity: Equal Weight (Specific), % IACS 130
14

Otherwise Unclassified Properties

Base Metal Price, % relative 12
32
Density, g/cm3 1.6
8.8
Embodied Carbon, kg CO2/kg material 24
3.4
Embodied Energy, MJ/kg 160
55
Embodied Water, L/kg 980
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 22
41
Resilience: Unit (Modulus of Resilience), kJ/m3 92
72
Stiffness to Weight: Axial, points 15
6.9
Stiffness to Weight: Bending, points 72
18
Strength to Weight: Axial, points 32
9.4
Strength to Weight: Bending, points 44
11
Thermal Shock Resistance, points 11
11

Alloy Composition


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Aluminum (Al), % 1.6 to 2.6
0 to 0.0050
Antimony (Sb), % 0
0 to 0.25
Copper (Cu), % 0 to 0.010
79 to 81
Iron (Fe), % 0 to 0.0050
0 to 0.3
Lead (Pb), % 0
4.0 to 6.0
Magnesium (Mg), % 96.3 to 98.3
0
Manganese (Mn), % 0.1 to 0.7
0 to 0.1
Nickel (Ni), % 0 to 0.0020
4.0 to 6.0
Phosphorus (P), % 0
0 to 0.050
Silicon (Si), % 0 to 0.1
0 to 0.0050
Sulfur (S), % 0
0 to 0.080
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 to 0.8