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AM50A Magnesium vs. CC490K Brass

AM50A magnesium belongs to the magnesium alloys classification, while CC490K 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 CC490K brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 58
76
Elastic (Young's, Tensile) Modulus, GPa 45
110
Elongation at Break, % 11
15
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 17
40
Tensile Strength: Ultimate (UTS), MPa 210
230
Tensile Strength: Yield (Proof), MPa 120
110

Thermal Properties

Latent Heat of Fusion, J/g 350
190
Maximum Temperature: Mechanical, °C 120
160
Melting Completion (Liquidus), °C 620
980
Melting Onset (Solidus), °C 570
910
Specific Heat Capacity, J/kg-K 1000
370
Thermal Conductivity, W/m-K 65
72
Thermal Expansion, µm/m-K 26
19

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 12
30
Density, g/cm3 1.7
8.8
Embodied Carbon, kg CO2/kg material 23
2.9
Embodied Energy, MJ/kg 160
47
Embodied Water, L/kg 990
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
28
Resilience: Unit (Modulus of Resilience), kJ/m3 150
54
Stiffness to Weight: Axial, points 15
6.8
Stiffness to Weight: Bending, points 71
18
Strength to Weight: Axial, points 35
7.3
Strength to Weight: Bending, points 47
9.5
Thermal Diffusivity, mm2/s 39
22
Thermal Shock Resistance, points 13
8.2

Alloy Composition

Aluminum (Al), % 4.4 to 5.4
0 to 0.010
Antimony (Sb), % 0
0 to 0.3
Copper (Cu), % 0 to 0.010
81 to 86
Iron (Fe), % 0 to 0.0040
0 to 0.5
Lead (Pb), % 0
3.0 to 6.0
Magnesium (Mg), % 93.7 to 95.3
0
Manganese (Mn), % 0.26 to 0.6
0
Nickel (Ni), % 0 to 0.0020
0 to 2.0
Phosphorus (P), % 0
0 to 0.050
Silicon (Si), % 0 to 0.1
0 to 0.010
Sulfur (S), % 0
0 to 0.1
Tin (Sn), % 0
2.0 to 3.5
Zinc (Zn), % 0 to 0.22
7.0 to 9.5