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EN-MC21210 Magnesium vs. CC764S Brass

EN-MC21210 magnesium belongs to the magnesium alloys classification, while CC764S 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-MC21210 magnesium and the bottom bar is CC764S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 48
160
Elastic (Young's, Tensile) Modulus, GPa 44
110
Elongation at Break, % 14
15
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 17
41
Tensile Strength: Ultimate (UTS), MPa 190
680
Tensile Strength: Yield (Proof), MPa 90
290

Thermal Properties

Latent Heat of Fusion, J/g 350
180
Maximum Temperature: Mechanical, °C 100
130
Melting Completion (Liquidus), °C 600
850
Melting Onset (Solidus), °C 570
810
Specific Heat Capacity, J/kg-K 1000
400
Thermal Conductivity, W/m-K 120
94
Thermal Expansion, µm/m-K 27
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24
32
Electrical Conductivity: Equal Weight (Specific), % IACS 130
36

Otherwise Unclassified Properties

Base Metal Price, % relative 12
23
Density, g/cm3 1.6
7.9
Embodied Carbon, kg CO2/kg material 24
2.9
Embodied Energy, MJ/kg 160
49
Embodied Water, L/kg 980
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 22
80
Resilience: Unit (Modulus of Resilience), kJ/m3 92
390
Stiffness to Weight: Axial, points 15
7.6
Stiffness to Weight: Bending, points 72
20
Strength to Weight: Axial, points 32
24
Strength to Weight: Bending, points 44
22
Thermal Diffusivity, mm2/s 76
30
Thermal Shock Resistance, points 11
22

Alloy Composition


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Aluminum (Al), % 1.6 to 2.6
1.0 to 3.0
Antimony (Sb), % 0
0 to 0.050
Copper (Cu), % 0 to 0.010
52 to 66
Iron (Fe), % 0 to 0.0050
0.5 to 2.5
Lead (Pb), % 0
0 to 0.3
Magnesium (Mg), % 96.3 to 98.3
0
Manganese (Mn), % 0.1 to 0.7
0.3 to 4.0
Nickel (Ni), % 0 to 0.0020
0 to 3.0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.1
0 to 0.1
Tin (Sn), % 0
0 to 0.3
Zinc (Zn), % 0 to 0.2
20.7 to 50.2
Residuals, % 0 to 0.010
0