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AM50A Magnesium vs. CC767S Brass

AM50A magnesium belongs to the magnesium alloys classification, while CC767S 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 AM50A magnesium and the bottom bar is CC767S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 58
86
Elastic (Young's, Tensile) Modulus, GPa 45
110
Elongation at Break, % 11
34
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 17
40
Tensile Strength: Ultimate (UTS), MPa 210
430
Tensile Strength: Yield (Proof), MPa 120
150

Thermal Properties

Latent Heat of Fusion, J/g 350
180
Maximum Temperature: Mechanical, °C 120
120
Melting Completion (Liquidus), °C 620
840
Melting Onset (Solidus), °C 570
790
Specific Heat Capacity, J/kg-K 1000
390
Thermal Conductivity, W/m-K 65
110
Thermal Expansion, µm/m-K 26
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
32
Electrical Conductivity: Equal Weight (Specific), % IACS 88
36

Otherwise Unclassified Properties

Base Metal Price, % relative 12
23
Density, g/cm3 1.7
8.0
Embodied Carbon, kg CO2/kg material 23
2.7
Embodied Energy, MJ/kg 160
47
Embodied Water, L/kg 990
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
110
Resilience: Unit (Modulus of Resilience), kJ/m3 150
100
Stiffness to Weight: Axial, points 15
7.3
Stiffness to Weight: Bending, points 71
20
Strength to Weight: Axial, points 35
15
Strength to Weight: Bending, points 47
16
Thermal Diffusivity, mm2/s 39
34
Thermal Shock Resistance, points 13
14

Alloy Composition

Aluminum (Al), % 4.4 to 5.4
0.1 to 0.8
Copper (Cu), % 0 to 0.010
58 to 64
Iron (Fe), % 0 to 0.0040
0 to 0.5
Lead (Pb), % 0
0 to 0.1
Magnesium (Mg), % 93.7 to 95.3
0
Manganese (Mn), % 0.26 to 0.6
0 to 0.5
Nickel (Ni), % 0 to 0.0020
0 to 1.0
Silicon (Si), % 0 to 0.1
0 to 0.2
Tin (Sn), % 0
0 to 0.1
Zinc (Zn), % 0 to 0.22
32.8 to 41.9