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EN-MC65120 Magnesium vs. C83300 Brass

EN-MC65120 magnesium belongs to the magnesium alloys classification, while C83300 brass belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, 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 C83300 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 55
35
Elastic (Young's, Tensile) Modulus, GPa 45
110
Elongation at Break, % 3.1
35
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 17
42
Tensile Strength: Ultimate (UTS), MPa 160
220
Tensile Strength: Yield (Proof), MPa 110
69

Thermal Properties

Latent Heat of Fusion, J/g 330
200
Maximum Temperature: Mechanical, °C 180
180
Melting Completion (Liquidus), °C 590
1060
Melting Onset (Solidus), °C 520
1030
Specific Heat Capacity, J/kg-K 970
380
Thermal Conductivity, W/m-K 100
160
Thermal Expansion, µm/m-K 26
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
32
Electrical Conductivity: Equal Weight (Specific), % IACS 120
33

Otherwise Unclassified Properties

Base Metal Price, % relative 25
30
Density, g/cm3 1.9
8.8
Embodied Carbon, kg CO2/kg material 25
2.7
Embodied Energy, MJ/kg 190
44
Embodied Water, L/kg 930
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.4
60
Resilience: Unit (Modulus of Resilience), kJ/m3 140
21
Stiffness to Weight: Axial, points 13
7.0
Stiffness to Weight: Bending, points 62
18
Strength to Weight: Axial, points 23
6.9
Strength to Weight: Bending, points 34
9.2
Thermal Diffusivity, mm2/s 56
48
Thermal Shock Resistance, points 9.8
7.9

Alloy Composition

Copper (Cu), % 0 to 0.030
92 to 94
Iron (Fe), % 0 to 0.010
0
Lead (Pb), % 0
1.0 to 2.0
Magnesium (Mg), % 91.8 to 95.1
0
Manganese (Mn), % 0 to 0.15
0
Nickel (Ni), % 0 to 0.0050
0
Silicon (Si), % 0 to 0.010
0
Tin (Sn), % 0
1.0 to 2.0
Unspecified Rare Earths, % 2.5 to 4.0
0
Zinc (Zn), % 2.0 to 3.0
2.0 to 6.0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0 to 0.7