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EN-MC65120 Magnesium vs. C42200 Brass

EN-MC65120 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-MC65120 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, % 3.1
2.0 to 46
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
42
Shear Strength, MPa 92
210 to 350
Tensile Strength: Ultimate (UTS), MPa 160
300 to 610
Tensile Strength: Yield (Proof), MPa 110
100 to 570

Thermal Properties

Latent Heat of Fusion, J/g 330
200
Maximum Temperature: Mechanical, °C 180
170
Melting Completion (Liquidus), °C 590
1040
Melting Onset (Solidus), °C 520
1020
Specific Heat Capacity, J/kg-K 970
380
Thermal Conductivity, W/m-K 100
130
Thermal Expansion, µm/m-K 26
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
31
Electrical Conductivity: Equal Weight (Specific), % IACS 120
32

Otherwise Unclassified Properties

Base Metal Price, % relative 25
29
Density, g/cm3 1.9
8.6
Embodied Carbon, kg CO2/kg material 25
2.7
Embodied Energy, MJ/kg 190
44
Embodied Water, L/kg 930
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.4
12 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 140
49 to 1460
Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 62
19
Strength to Weight: Axial, points 23
9.5 to 19
Strength to Weight: Bending, points 34
11 to 18
Thermal Diffusivity, mm2/s 56
39
Thermal Shock Resistance, points 9.8
10 to 21

Alloy Composition


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Copper (Cu), % 0 to 0.030
86 to 89
Iron (Fe), % 0 to 0.010
0 to 0.050
Lead (Pb), % 0
0 to 0.050
Magnesium (Mg), % 91.8 to 95.1
0
Manganese (Mn), % 0 to 0.15
0
Nickel (Ni), % 0 to 0.0050
0
Phosphorus (P), % 0
0 to 0.35
Silicon (Si), % 0 to 0.010
0
Tin (Sn), % 0
0.8 to 1.4
Unspecified Rare Earths, % 2.5 to 4.0
0
Zinc (Zn), % 2.0 to 3.0
8.7 to 13.2
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0 to 0.5