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EN-MC21210 Magnesium vs. C85500 Brass

EN-MC21210 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-MC21210 magnesium and the bottom bar is C85500 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 48
85
Elastic (Young's, Tensile) Modulus, GPa 44
100
Elongation at Break, % 14
40
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 17
40
Tensile Strength: Ultimate (UTS), MPa 190
410
Tensile Strength: Yield (Proof), MPa 90
160

Thermal Properties

Latent Heat of Fusion, J/g 350
170
Maximum Temperature: Mechanical, °C 100
120
Melting Completion (Liquidus), °C 600
900
Melting Onset (Solidus), °C 570
890
Specific Heat Capacity, J/kg-K 1000
390
Thermal Conductivity, W/m-K 120
120
Thermal Expansion, µm/m-K 27
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24
26
Electrical Conductivity: Equal Weight (Specific), % IACS 130
29

Otherwise Unclassified Properties

Base Metal Price, % relative 12
23
Density, g/cm3 1.6
8.0
Embodied Carbon, kg CO2/kg material 24
2.7
Embodied Energy, MJ/kg 160
46
Embodied Water, L/kg 980
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 22
130
Resilience: Unit (Modulus of Resilience), kJ/m3 92
120
Stiffness to Weight: Axial, points 15
7.3
Stiffness to Weight: Bending, points 72
20
Strength to Weight: Axial, points 32
14
Strength to Weight: Bending, points 44
15
Thermal Diffusivity, mm2/s 76
38
Thermal Shock Resistance, points 11
14

Alloy Composition


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Aluminum (Al), % 1.6 to 2.6
0
Copper (Cu), % 0 to 0.010
59 to 63
Iron (Fe), % 0 to 0.0050
0 to 0.2
Lead (Pb), % 0
0 to 0.2
Magnesium (Mg), % 96.3 to 98.3
0
Manganese (Mn), % 0.1 to 0.7
0 to 0.2
Nickel (Ni), % 0 to 0.0020
0 to 0.2
Silicon (Si), % 0 to 0.1
0
Tin (Sn), % 0
0 to 0.2
Zinc (Zn), % 0 to 0.2
35.1 to 41
Residuals, % 0 to 0.010
0 to 0.9