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EN-MC65210 Magnesium vs. C68100 Brass

EN-MC65210 magnesium belongs to the magnesium alloys classification, while C68100 brass belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (6, 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-MC65210 magnesium and the bottom bar is C68100 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
100
Elongation at Break, % 2.8
29
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 17
40
Tensile Strength: Ultimate (UTS), MPa 270
380
Tensile Strength: Yield (Proof), MPa 200
140

Thermal Properties

Latent Heat of Fusion, J/g 340
170
Maximum Temperature: Mechanical, °C 170
120
Melting Completion (Liquidus), °C 610
890
Melting Onset (Solidus), °C 540
870
Specific Heat Capacity, J/kg-K 970
390
Thermal Conductivity, W/m-K 110
98
Thermal Expansion, µm/m-K 26
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
24
Electrical Conductivity: Equal Weight (Specific), % IACS 110
27

Otherwise Unclassified Properties

Density, g/cm3 2.0
7.9
Embodied Carbon, kg CO2/kg material 27
2.8
Embodied Energy, MJ/kg 220
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.9
86
Resilience: Unit (Modulus of Resilience), kJ/m3 450
94
Stiffness to Weight: Axial, points 12
7.3
Stiffness to Weight: Bending, points 59
20
Strength to Weight: Axial, points 38
13
Strength to Weight: Bending, points 47
15
Thermal Diffusivity, mm2/s 58
32
Thermal Shock Resistance, points 17
13

Alloy Composition

Aluminum (Al), % 0
0 to 0.010
Copper (Cu), % 0 to 0.030
56 to 60
Iron (Fe), % 0 to 0.010
0.25 to 1.3
Lead (Pb), % 0
0 to 0.050
Magnesium (Mg), % 92.6 to 95.6
0
Manganese (Mn), % 0 to 0.15
0.010 to 0.5
Nickel (Ni), % 0 to 0.0050
0
Silicon (Si), % 0 to 0.010
0.040 to 0.15
Silver (Ag), % 2.0 to 3.0
0
Tin (Sn), % 0
0.75 to 1.1
Unspecified Rare Earths, % 2.0 to 3.0
0
Zinc (Zn), % 0 to 0.2
36.4 to 43
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0 to 0.5