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EN-MC21230 Magnesium vs. C62500 Bronze

EN-MC21230 magnesium belongs to the magnesium alloys classification, while C62500 bronze belongs to the copper alloys. There are 30 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 C62500 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
110
Elongation at Break, % 10
1.0
Fatigue Strength, MPa 99
460
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 18
42
Shear Strength, MPa 130
410
Tensile Strength: Ultimate (UTS), MPa 220
690
Tensile Strength: Yield (Proof), MPa 140
410

Thermal Properties

Latent Heat of Fusion, J/g 350
230
Maximum Temperature: Mechanical, °C 120
230
Melting Completion (Liquidus), °C 600
1050
Melting Onset (Solidus), °C 520
1050
Specific Heat Capacity, J/kg-K 1000
460
Thermal Conductivity, W/m-K 72
47
Thermal Expansion, µm/m-K 27
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
10
Electrical Conductivity: Equal Weight (Specific), % IACS 63
11

Otherwise Unclassified Properties

Base Metal Price, % relative 12
26
Density, g/cm3 1.7
8.1
Embodied Carbon, kg CO2/kg material 23
3.3
Embodied Energy, MJ/kg 160
55
Embodied Water, L/kg 990
410

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
6.0
Resilience: Unit (Modulus of Resilience), kJ/m3 200
750
Stiffness to Weight: Axial, points 15
7.8
Stiffness to Weight: Bending, points 71
20
Strength to Weight: Axial, points 36
24
Strength to Weight: Bending, points 48
22
Thermal Diffusivity, mm2/s 43
13
Thermal Shock Resistance, points 13
24

Alloy Composition

Aluminum (Al), % 5.5 to 8.5
12.5 to 13.5
Copper (Cu), % 0 to 0.010
78.5 to 84
Iron (Fe), % 0 to 0.0050
3.5 to 5.5
Magnesium (Mg), % 90.5 to 94.4
0
Manganese (Mn), % 0.1 to 0.6
0 to 2.0
Nickel (Ni), % 0 to 0.0020
0
Silicon (Si), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.3
0
Residuals, % 0 to 0.010
0 to 0.5