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EN-MC21320 Magnesium vs. C93200 Bronze

EN-MC21320 magnesium belongs to the magnesium alloys classification, while C93200 bronze belongs to the copper alloys. There are 29 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-MC21320 magnesium and the bottom bar is C93200 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
100
Elongation at Break, % 7.5
20
Fatigue Strength, MPa 95
110
Poisson's Ratio 0.29
0.35
Shear Modulus, GPa 18
38
Tensile Strength: Ultimate (UTS), MPa 230
240
Tensile Strength: Yield (Proof), MPa 140
130

Thermal Properties

Latent Heat of Fusion, J/g 370
180
Maximum Temperature: Mechanical, °C 110
160
Melting Completion (Liquidus), °C 600
980
Melting Onset (Solidus), °C 530
850
Specific Heat Capacity, J/kg-K 1000
360
Thermal Conductivity, W/m-K 66
59
Thermal Expansion, µm/m-K 26
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
12
Electrical Conductivity: Equal Weight (Specific), % IACS 91
12

Otherwise Unclassified Properties

Base Metal Price, % relative 12
32
Density, g/cm3 1.6
8.8
Embodied Carbon, kg CO2/kg material 23
3.2
Embodied Energy, MJ/kg 160
52
Embodied Water, L/kg 980
370

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 15
40
Resilience: Unit (Modulus of Resilience), kJ/m3 200
76
Stiffness to Weight: Axial, points 15
6.5
Stiffness to Weight: Bending, points 72
18
Strength to Weight: Axial, points 38
7.5
Strength to Weight: Bending, points 50
9.7
Thermal Diffusivity, mm2/s 40
18
Thermal Shock Resistance, points 13
9.3

Alloy Composition


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Aluminum (Al), % 3.5 to 5.0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.35
Copper (Cu), % 0 to 0.010
81 to 85
Iron (Fe), % 0 to 0.0050
0 to 0.2
Lead (Pb), % 0
6.0 to 8.0
Magnesium (Mg), % 92.5 to 95.9
0
Manganese (Mn), % 0.1 to 0.7
0
Nickel (Ni), % 0 to 0.0020
0 to 1.0
Phosphorus (P), % 0
0 to 1.5
Silicon (Si), % 0.5 to 1.5
0 to 0.0050
Sulfur (S), % 0
0 to 0.080
Tin (Sn), % 0
6.3 to 7.5
Zinc (Zn), % 0 to 0.2
2.0 to 4.0
Residuals, % 0 to 0.010
0 to 1.0