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EN-MC65120 Magnesium vs. C84500 Brass

EN-MC65120 magnesium belongs to the magnesium alloys classification, while C84500 brass 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-MC65120 magnesium and the bottom bar is C84500 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 55
55
Elastic (Young's, Tensile) Modulus, GPa 45
100
Elongation at Break, % 3.1
28
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 17
39
Tensile Strength: Ultimate (UTS), MPa 160
240
Tensile Strength: Yield (Proof), MPa 110
97

Thermal Properties

Latent Heat of Fusion, J/g 330
180
Maximum Temperature: Mechanical, °C 180
150
Melting Completion (Liquidus), °C 590
980
Melting Onset (Solidus), °C 520
840
Specific Heat Capacity, J/kg-K 970
360
Thermal Conductivity, W/m-K 100
72
Thermal Expansion, µm/m-K 26
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
16
Electrical Conductivity: Equal Weight (Specific), % IACS 120
17

Otherwise Unclassified Properties

Base Metal Price, % relative 25
28
Density, g/cm3 1.9
8.7
Embodied Carbon, kg CO2/kg material 25
2.9
Embodied Energy, MJ/kg 190
47
Embodied Water, L/kg 930
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.4
54
Resilience: Unit (Modulus of Resilience), kJ/m3 140
45
Stiffness to Weight: Axial, points 13
6.6
Stiffness to Weight: Bending, points 62
18
Strength to Weight: Axial, points 23
7.7
Strength to Weight: Bending, points 34
9.8
Thermal Diffusivity, mm2/s 56
23
Thermal Shock Resistance, points 9.8
8.6

Alloy Composition


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Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.25
Copper (Cu), % 0 to 0.030
77 to 79
Iron (Fe), % 0 to 0.010
0 to 0.4
Lead (Pb), % 0
6.0 to 7.5
Magnesium (Mg), % 91.8 to 95.1
0
Manganese (Mn), % 0 to 0.15
0
Nickel (Ni), % 0 to 0.0050
0 to 1.0
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0 to 0.010
0 to 0.0050
Sulfur (S), % 0
0 to 0.080
Tin (Sn), % 0
2.0 to 4.0
Unspecified Rare Earths, % 2.5 to 4.0
0
Zinc (Zn), % 2.0 to 3.0
10 to 14
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0 to 0.7