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EN-MC21220 Magnesium vs. C42200 Brass

EN-MC21220 magnesium belongs to the magnesium alloys classification, while C42200 brass belongs to the copper alloys. There are 29 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 C42200 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
110
Elongation at Break, % 11
2.0 to 46
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
42
Shear Strength, MPa 120
210 to 350
Tensile Strength: Ultimate (UTS), MPa 210
300 to 610
Tensile Strength: Yield (Proof), MPa 120
100 to 570

Thermal Properties

Latent Heat of Fusion, J/g 350
200
Maximum Temperature: Mechanical, °C 120
170
Melting Completion (Liquidus), °C 600
1040
Melting Onset (Solidus), °C 540
1020
Specific Heat Capacity, J/kg-K 1000
380
Thermal Conductivity, W/m-K 65
130
Thermal Expansion, µm/m-K 27
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
31
Electrical Conductivity: Equal Weight (Specific), % IACS 87
32

Otherwise Unclassified Properties

Base Metal Price, % relative 12
29
Density, g/cm3 1.7
8.6
Embodied Carbon, kg CO2/kg material 23
2.7
Embodied Energy, MJ/kg 160
44
Embodied Water, L/kg 990
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20
12 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 160
49 to 1460
Stiffness to Weight: Axial, points 15
7.2
Stiffness to Weight: Bending, points 71
19
Strength to Weight: Axial, points 34
9.5 to 19
Strength to Weight: Bending, points 46
11 to 18
Thermal Diffusivity, mm2/s 39
39
Thermal Shock Resistance, points 12
10 to 21

Alloy Composition


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Aluminum (Al), % 4.4 to 5.5
0
Copper (Cu), % 0 to 0.010
86 to 89
Iron (Fe), % 0 to 0.0050
0 to 0.050
Lead (Pb), % 0
0 to 0.050
Magnesium (Mg), % 93.5 to 95.5
0
Manganese (Mn), % 0.1 to 0.6
0
Nickel (Ni), % 0 to 0.0020
0
Phosphorus (P), % 0
0 to 0.35
Silicon (Si), % 0 to 0.1
0
Tin (Sn), % 0
0.8 to 1.4
Zinc (Zn), % 0 to 0.3
8.7 to 13.2
Residuals, % 0 to 0.010
0 to 0.5