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EN-MC65120 Magnesium vs. C85500 Brass

EN-MC65120 magnesium belongs to the magnesium alloys classification, while C85500 brass belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, 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 C85500 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 55
85
Elastic (Young's, Tensile) Modulus, GPa 45
100
Elongation at Break, % 3.1
40
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 17
40
Tensile Strength: Ultimate (UTS), MPa 160
410
Tensile Strength: Yield (Proof), MPa 110
160

Thermal Properties

Latent Heat of Fusion, J/g 330
170
Maximum Temperature: Mechanical, °C 180
120
Melting Completion (Liquidus), °C 590
900
Melting Onset (Solidus), °C 520
890
Specific Heat Capacity, J/kg-K 970
390
Thermal Conductivity, W/m-K 100
120
Thermal Expansion, µm/m-K 26
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
26
Electrical Conductivity: Equal Weight (Specific), % IACS 120
29

Otherwise Unclassified Properties

Base Metal Price, % relative 25
23
Density, g/cm3 1.9
8.0
Embodied Carbon, kg CO2/kg material 25
2.7
Embodied Energy, MJ/kg 190
46
Embodied Water, L/kg 930
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.4
130
Resilience: Unit (Modulus of Resilience), kJ/m3 140
120
Stiffness to Weight: Axial, points 13
7.3
Stiffness to Weight: Bending, points 62
20
Strength to Weight: Axial, points 23
14
Strength to Weight: Bending, points 34
15
Thermal Diffusivity, mm2/s 56
38
Thermal Shock Resistance, points 9.8
14

Alloy Composition

Copper (Cu), % 0 to 0.030
59 to 63
Iron (Fe), % 0 to 0.010
0 to 0.2
Lead (Pb), % 0
0 to 0.2
Magnesium (Mg), % 91.8 to 95.1
0
Manganese (Mn), % 0 to 0.15
0 to 0.2
Nickel (Ni), % 0 to 0.0050
0 to 0.2
Silicon (Si), % 0 to 0.010
0
Tin (Sn), % 0
0 to 0.2
Unspecified Rare Earths, % 2.5 to 4.0
0
Zinc (Zn), % 2.0 to 3.0
35.1 to 41
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0 to 0.9