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EN-MC21220 Magnesium vs. C46200 Brass

EN-MC21220 magnesium belongs to the magnesium alloys classification, while C46200 brass belongs to the copper alloys. There are 27 material properties with values for both materials. Properties with values for just one material (4, 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 C46200 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
100
Elongation at Break, % 11
17 to 34
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 17
40
Shear Strength, MPa 120
240 to 290
Tensile Strength: Ultimate (UTS), MPa 210
370 to 480
Tensile Strength: Yield (Proof), MPa 120
120 to 290

Thermal Properties

Latent Heat of Fusion, J/g 350
170
Maximum Temperature: Mechanical, °C 120
120
Melting Completion (Liquidus), °C 600
840
Melting Onset (Solidus), °C 540
800
Specific Heat Capacity, J/kg-K 1000
380
Thermal Conductivity, W/m-K 65
110
Thermal Expansion, µm/m-K 27
20

Otherwise Unclassified Properties

Base Metal Price, % relative 12
24
Density, g/cm3 1.7
8.1
Embodied Carbon, kg CO2/kg material 23
2.7
Embodied Energy, MJ/kg 160
46
Embodied Water, L/kg 990
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20
69 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 160
72 to 400
Stiffness to Weight: Axial, points 15
7.2
Stiffness to Weight: Bending, points 71
19
Strength to Weight: Axial, points 34
13 to 16
Strength to Weight: Bending, points 46
14 to 17
Thermal Diffusivity, mm2/s 39
35
Thermal Shock Resistance, points 12
12 to 16

Alloy Composition


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Aluminum (Al), % 4.4 to 5.5
0
Copper (Cu), % 0 to 0.010
62 to 65
Iron (Fe), % 0 to 0.0050
0 to 0.1
Lead (Pb), % 0
0 to 0.2
Magnesium (Mg), % 93.5 to 95.5
0
Manganese (Mn), % 0.1 to 0.6
0
Nickel (Ni), % 0 to 0.0020
0
Silicon (Si), % 0 to 0.1
0
Tin (Sn), % 0
0.5 to 1.0
Zinc (Zn), % 0 to 0.3
33.3 to 37.5
Residuals, % 0 to 0.010
0 to 0.4