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EN-MC65120 Magnesium vs. CC763S Brass

EN-MC65120 magnesium belongs to the magnesium alloys classification, while CC763S brass belongs to the copper alloys. There are 27 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 CC763S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 55
130
Elastic (Young's, Tensile) Modulus, GPa 45
110
Elongation at Break, % 3.1
7.3
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 17
41
Tensile Strength: Ultimate (UTS), MPa 160
490
Tensile Strength: Yield (Proof), MPa 110
270

Thermal Properties

Latent Heat of Fusion, J/g 330
190
Maximum Temperature: Mechanical, °C 180
140
Melting Completion (Liquidus), °C 590
870
Melting Onset (Solidus), °C 520
830
Specific Heat Capacity, J/kg-K 970
400
Thermal Expansion, µm/m-K 26
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
29
Electrical Conductivity: Equal Weight (Specific), % IACS 120
32

Otherwise Unclassified Properties

Base Metal Price, % relative 25
24
Density, g/cm3 1.9
8.0
Embodied Carbon, kg CO2/kg material 25
2.9
Embodied Energy, MJ/kg 190
49
Embodied Water, L/kg 930
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.4
30
Resilience: Unit (Modulus of Resilience), kJ/m3 140
340
Stiffness to Weight: Axial, points 13
7.5
Stiffness to Weight: Bending, points 62
20
Strength to Weight: Axial, points 23
17
Strength to Weight: Bending, points 34
17
Thermal Shock Resistance, points 9.8
16

Alloy Composition


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Aluminum (Al), % 0
1.0 to 2.5
Antimony (Sb), % 0
0 to 0.080
Copper (Cu), % 0 to 0.030
56.5 to 67
Iron (Fe), % 0 to 0.010
0.5 to 2.0
Lead (Pb), % 0
0 to 1.5
Magnesium (Mg), % 91.8 to 95.1
0
Manganese (Mn), % 0 to 0.15
1.0 to 3.5
Nickel (Ni), % 0 to 0.0050
0 to 2.5
Silicon (Si), % 0 to 0.010
0 to 1.0
Tin (Sn), % 0
0 to 1.0
Unspecified Rare Earths, % 2.5 to 4.0
0
Zinc (Zn), % 2.0 to 3.0
18.9 to 41
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0