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EN-MC65220 Magnesium vs. C85800 Brass

EN-MC65220 magnesium belongs to the magnesium alloys classification, while C85800 brass belongs to the copper alloys. There are 27 material properties with values for both materials. Properties with values for just one material (5, 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-MC65220 magnesium and the bottom bar is C85800 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
100
Elongation at Break, % 2.2
15
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 17
40
Tensile Strength: Ultimate (UTS), MPa 270
380
Tensile Strength: Yield (Proof), MPa 200
210

Thermal Properties

Latent Heat of Fusion, J/g 340
170
Maximum Temperature: Mechanical, °C 160
120
Melting Completion (Liquidus), °C 610
900
Melting Onset (Solidus), °C 550
870
Specific Heat Capacity, J/kg-K 980
380
Thermal Conductivity, W/m-K 110
84
Thermal Expansion, µm/m-K 26
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
20
Electrical Conductivity: Equal Weight (Specific), % IACS 120
22

Otherwise Unclassified Properties

Base Metal Price, % relative 80
24
Density, g/cm3 1.9
8.0
Embodied Carbon, kg CO2/kg material 27
2.8
Embodied Energy, MJ/kg 210
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.5
48
Resilience: Unit (Modulus of Resilience), kJ/m3 450
210
Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 62
20
Strength to Weight: Axial, points 40
13
Strength to Weight: Bending, points 49
15
Thermal Diffusivity, mm2/s 61
27
Thermal Shock Resistance, points 17
13

Alloy Composition


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Aluminum (Al), % 0
0 to 0.55
Antimony (Sb), % 0
0 to 0.050
Arsenic (As), % 0
0 to 0.050
Copper (Cu), % 0.050 to 0.1
57 to 69
Iron (Fe), % 0 to 0.010
0 to 0.5
Lead (Pb), % 0
0 to 1.5
Magnesium (Mg), % 93.8 to 96.8
0
Manganese (Mn), % 0 to 0.15
0 to 0.25
Nickel (Ni), % 0 to 0.0050
0 to 0.5
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0 to 0.010
0 to 0.25
Silver (Ag), % 1.3 to 1.7
0
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 0
0 to 1.5
Unspecified Rare Earths, % 1.5 to 3.0
0
Zinc (Zn), % 0 to 0.2
31 to 41
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0 to 1.3