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EN-MC21230 Magnesium vs. C64800 Bronze

EN-MC21230 magnesium belongs to the magnesium alloys classification, while C64800 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-MC21230 magnesium and the bottom bar is C64800 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
120
Elongation at Break, % 10
8.0
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 18
44
Shear Strength, MPa 130
380
Tensile Strength: Ultimate (UTS), MPa 220
640
Tensile Strength: Yield (Proof), MPa 140
630

Thermal Properties

Latent Heat of Fusion, J/g 350
220
Maximum Temperature: Mechanical, °C 120
200
Melting Completion (Liquidus), °C 600
1090
Melting Onset (Solidus), °C 520
1030
Specific Heat Capacity, J/kg-K 1000
390
Thermal Conductivity, W/m-K 72
260
Thermal Expansion, µm/m-K 27
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
65
Electrical Conductivity: Equal Weight (Specific), % IACS 63
66

Otherwise Unclassified Properties

Base Metal Price, % relative 12
33
Density, g/cm3 1.7
8.9
Embodied Carbon, kg CO2/kg material 23
2.7
Embodied Energy, MJ/kg 160
43
Embodied Water, L/kg 990
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
51
Resilience: Unit (Modulus of Resilience), kJ/m3 200
1680
Stiffness to Weight: Axial, points 15
7.4
Stiffness to Weight: Bending, points 71
18
Strength to Weight: Axial, points 36
20
Strength to Weight: Bending, points 48
19
Thermal Diffusivity, mm2/s 43
75
Thermal Shock Resistance, points 13
23

Alloy Composition

Aluminum (Al), % 5.5 to 8.5
0
Chromium (Cr), % 0
0 to 0.090
Cobalt (Co), % 0
1.0 to 3.0
Copper (Cu), % 0 to 0.010
92.4 to 98.8
Iron (Fe), % 0 to 0.0050
0 to 1.0
Lead (Pb), % 0
0 to 0.050
Magnesium (Mg), % 90.5 to 94.4
0
Manganese (Mn), % 0.1 to 0.6
0
Nickel (Ni), % 0 to 0.0020
0 to 0.5
Phosphorus (P), % 0
0 to 0.5
Silicon (Si), % 0 to 0.1
0.2 to 1.0
Tin (Sn), % 0
0 to 0.5
Zinc (Zn), % 0 to 0.3
0 to 0.5
Residuals, % 0 to 0.010
0 to 0.5