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EN-MC65120 Magnesium vs. C85900 Brass

EN-MC65120 magnesium belongs to the magnesium alloys classification, while C85900 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 C85900 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 55
85
Elastic (Young's, Tensile) Modulus, GPa 45
100
Elongation at Break, % 3.1
30
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 17
40
Tensile Strength: Ultimate (UTS), MPa 160
460
Tensile Strength: Yield (Proof), MPa 110
190

Thermal Properties

Latent Heat of Fusion, J/g 330
170
Maximum Temperature: Mechanical, °C 180
130
Melting Completion (Liquidus), °C 590
830
Melting Onset (Solidus), °C 520
790
Specific Heat Capacity, J/kg-K 970
390
Thermal Conductivity, W/m-K 100
89
Thermal Expansion, µm/m-K 26
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
25
Electrical Conductivity: Equal Weight (Specific), % IACS 120
28

Otherwise Unclassified Properties

Base Metal Price, % relative 25
24
Density, g/cm3 1.9
8.0
Embodied Carbon, kg CO2/kg material 25
2.9
Embodied Energy, MJ/kg 190
49
Embodied Water, L/kg 930
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.4
110
Resilience: Unit (Modulus of Resilience), kJ/m3 140
170
Stiffness to Weight: Axial, points 13
7.3
Stiffness to Weight: Bending, points 62
20
Strength to Weight: Axial, points 23
16
Strength to Weight: Bending, points 34
17
Thermal Diffusivity, mm2/s 56
29
Thermal Shock Resistance, points 9.8
16

Alloy Composition


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Aluminum (Al), % 0
0.1 to 0.6
Antimony (Sb), % 0
0 to 0.2
Boron (B), % 0
0 to 0.2
Copper (Cu), % 0 to 0.030
58 to 62
Iron (Fe), % 0 to 0.010
0 to 0.5
Lead (Pb), % 0
0 to 0.090
Magnesium (Mg), % 91.8 to 95.1
0
Manganese (Mn), % 0 to 0.15
0 to 0.010
Nickel (Ni), % 0 to 0.0050
0 to 1.5
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0 to 0.010
0 to 0.25
Sulfur (S), % 0
0.1 to 0.65
Tin (Sn), % 0
0 to 1.5
Unspecified Rare Earths, % 2.5 to 4.0
0
Zinc (Zn), % 2.0 to 3.0
31 to 41
Zirconium (Zr), % 0.4 to 1.0
0 to 0.2
Residuals, % 0 to 0.010
0 to 0.7