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EN-MC65120 Magnesium vs. C83400 Brass

EN-MC65120 magnesium belongs to the magnesium alloys classification, while C83400 brass belongs to the copper alloys. There are 28 material properties with values for both materials. Properties with values for just one material (4, 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 C83400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
110
Elongation at Break, % 3.1
30
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
42
Tensile Strength: Ultimate (UTS), MPa 160
240
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
1040
Melting Onset (Solidus), °C 520
1020
Specific Heat Capacity, J/kg-K 970
380
Thermal Conductivity, W/m-K 100
190
Thermal Expansion, µm/m-K 26
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
44
Electrical Conductivity: Equal Weight (Specific), % IACS 120
46

Otherwise Unclassified Properties

Base Metal Price, % relative 25
29
Density, g/cm3 1.9
8.7
Embodied Carbon, kg CO2/kg material 25
2.7
Embodied Energy, MJ/kg 190
43
Embodied Water, L/kg 930
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.4
55
Resilience: Unit (Modulus of Resilience), kJ/m3 140
21
Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 62
19
Strength to Weight: Axial, points 23
7.7
Strength to Weight: Bending, points 34
9.9
Thermal Diffusivity, mm2/s 56
57
Thermal Shock Resistance, points 9.8
8.4

Alloy Composition

Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.25
Copper (Cu), % 0 to 0.030
88 to 92
Iron (Fe), % 0 to 0.010
0 to 0.25
Lead (Pb), % 0
0 to 0.5
Magnesium (Mg), % 91.8 to 95.1
0
Manganese (Mn), % 0 to 0.15
0
Nickel (Ni), % 0 to 0.0050
0 to 1.0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.010
0 to 0.0050
Sulfur (S), % 0
0 to 0.080
Tin (Sn), % 0
0 to 0.2
Unspecified Rare Earths, % 2.5 to 4.0
0
Zinc (Zn), % 2.0 to 3.0
8.0 to 12
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0 to 0.7