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EN-MC65210 Magnesium vs. C85700 Brass

EN-MC65210 magnesium belongs to the magnesium alloys classification, while C85700 brass belongs to the copper alloys. There are 26 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-MC65210 magnesium and the bottom bar is C85700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
100
Elongation at Break, % 2.8
17
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 17
40
Tensile Strength: Ultimate (UTS), MPa 270
310
Tensile Strength: Yield (Proof), MPa 200
110

Thermal Properties

Latent Heat of Fusion, J/g 340
170
Maximum Temperature: Mechanical, °C 170
120
Melting Completion (Liquidus), °C 610
940
Melting Onset (Solidus), °C 540
910
Specific Heat Capacity, J/kg-K 970
380
Thermal Conductivity, W/m-K 110
84
Thermal Expansion, µm/m-K 26
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
22
Electrical Conductivity: Equal Weight (Specific), % IACS 110
25

Otherwise Unclassified Properties

Density, g/cm3 2.0
8.0
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
41
Resilience: Unit (Modulus of Resilience), kJ/m3 450
59
Stiffness to Weight: Axial, points 12
7.2
Stiffness to Weight: Bending, points 59
20
Strength to Weight: Axial, points 38
11
Strength to Weight: Bending, points 47
13
Thermal Diffusivity, mm2/s 58
27
Thermal Shock Resistance, points 17
10

Alloy Composition


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Aluminum (Al), % 0
0 to 0.8
Copper (Cu), % 0 to 0.030
58 to 64
Iron (Fe), % 0 to 0.010
0 to 0.7
Lead (Pb), % 0
0.8 to 1.5
Magnesium (Mg), % 92.6 to 95.6
0
Manganese (Mn), % 0 to 0.15
0
Nickel (Ni), % 0 to 0.0050
0 to 1.0
Silicon (Si), % 0 to 0.010
0 to 0.050
Silver (Ag), % 2.0 to 3.0
0
Tin (Sn), % 0
0.5 to 1.5
Unspecified Rare Earths, % 2.0 to 3.0
0
Zinc (Zn), % 0 to 0.2
32 to 40
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0 to 1.3