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EN-MC65120 Magnesium vs. C84100 Brass

EN-MC65120 magnesium belongs to the magnesium alloys classification, while C84100 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 C84100 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 55
65
Elastic (Young's, Tensile) Modulus, GPa 45
110
Elongation at Break, % 3.1
13
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
39
Tensile Strength: Ultimate (UTS), MPa 160
230
Tensile Strength: Yield (Proof), MPa 110
81

Thermal Properties

Latent Heat of Fusion, J/g 330
190
Maximum Temperature: Mechanical, °C 180
160
Melting Completion (Liquidus), °C 590
1000
Melting Onset (Solidus), °C 520
810
Specific Heat Capacity, J/kg-K 970
380
Thermal Conductivity, W/m-K 100
110
Thermal Expansion, µm/m-K 26
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
23
Electrical Conductivity: Equal Weight (Specific), % IACS 120
25

Otherwise Unclassified Properties

Base Metal Price, % relative 25
29
Density, g/cm3 1.9
8.5
Embodied Carbon, kg CO2/kg material 25
2.9
Embodied Energy, MJ/kg 190
48
Embodied Water, L/kg 930
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.4
24
Resilience: Unit (Modulus of Resilience), kJ/m3 140
30
Stiffness to Weight: Axial, points 13
7.1
Stiffness to Weight: Bending, points 62
19
Strength to Weight: Axial, points 23
7.4
Strength to Weight: Bending, points 34
9.7
Thermal Diffusivity, mm2/s 56
33
Thermal Shock Resistance, points 9.8
7.8

Alloy Composition

Aluminum (Al), % 0
0 to 0.010
Antimony (Sb), % 0
0 to 0.050
Bismuth (Bi), % 0
0 to 0.090
Copper (Cu), % 0 to 0.030
78 to 85
Iron (Fe), % 0 to 0.010
0 to 0.3
Lead (Pb), % 0
0.050 to 0.25
Magnesium (Mg), % 91.8 to 95.1
0
Manganese (Mn), % 0 to 0.15
0
Nickel (Ni), % 0 to 0.0050
0 to 0.5
Phosphorus (P), % 0
0 to 0.050
Silicon (Si), % 0 to 0.010
0 to 0.010
Tin (Sn), % 0
1.5 to 4.5
Unspecified Rare Earths, % 2.5 to 4.0
0
Zinc (Zn), % 2.0 to 3.0
12 to 20
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0 to 0.5