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EN-MC21220 Magnesium vs. CC753S Brass

EN-MC21220 magnesium belongs to the magnesium alloys classification, while CC753S 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-MC21220 magnesium and the bottom bar is CC753S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 58
100
Elastic (Young's, Tensile) Modulus, GPa 45
100
Elongation at Break, % 11
17
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 17
40
Tensile Strength: Ultimate (UTS), MPa 210
340
Tensile Strength: Yield (Proof), MPa 120
170

Thermal Properties

Latent Heat of Fusion, J/g 350
170
Maximum Temperature: Mechanical, °C 120
120
Melting Completion (Liquidus), °C 600
820
Melting Onset (Solidus), °C 540
780
Specific Heat Capacity, J/kg-K 1000
390
Thermal Conductivity, W/m-K 65
99
Thermal Expansion, µm/m-K 27
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
26
Electrical Conductivity: Equal Weight (Specific), % IACS 87
29

Otherwise Unclassified Properties

Base Metal Price, % relative 12
23
Density, g/cm3 1.7
8.1
Embodied Carbon, kg CO2/kg material 23
2.8
Embodied Energy, MJ/kg 160
47
Embodied Water, L/kg 990
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20
47
Resilience: Unit (Modulus of Resilience), kJ/m3 160
140
Stiffness to Weight: Axial, points 15
7.1
Stiffness to Weight: Bending, points 71
19
Strength to Weight: Axial, points 34
12
Strength to Weight: Bending, points 46
13
Thermal Diffusivity, mm2/s 39
32
Thermal Shock Resistance, points 12
11

Alloy Composition


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Aluminum (Al), % 4.4 to 5.5
0.4 to 0.8
Antimony (Sb), % 0
0 to 0.050
Copper (Cu), % 0 to 0.010
56.8 to 60.5
Iron (Fe), % 0 to 0.0050
0.5 to 0.8
Lead (Pb), % 0
1.8 to 2.5
Magnesium (Mg), % 93.5 to 95.5
0
Manganese (Mn), % 0.1 to 0.6
0 to 0.2
Nickel (Ni), % 0 to 0.0020
0.5 to 1.2
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0 to 0.1
0 to 0.050
Tin (Sn), % 0
0 to 0.8
Zinc (Zn), % 0 to 0.3
33.1 to 40
Residuals, % 0 to 0.010
0