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ZC63A Magnesium vs. C42600 Brass

ZC63A magnesium belongs to the magnesium alloys classification, while C42600 brass belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, 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 ZC63A magnesium and the bottom bar is C42600 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 48
110
Elongation at Break, % 3.3
1.1 to 40
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 19
42
Shear Strength, MPa 130
280 to 470
Tensile Strength: Ultimate (UTS), MPa 220
410 to 830
Tensile Strength: Yield (Proof), MPa 130
220 to 810

Thermal Properties

Latent Heat of Fusion, J/g 330
200
Maximum Temperature: Mechanical, °C 98
180
Melting Completion (Liquidus), °C 550
1030
Melting Onset (Solidus), °C 470
1010
Specific Heat Capacity, J/kg-K 950
380
Thermal Conductivity, W/m-K 120
110
Thermal Expansion, µm/m-K 26
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
25
Electrical Conductivity: Equal Weight (Specific), % IACS 140
26

Otherwise Unclassified Properties

Base Metal Price, % relative 13
31
Density, g/cm3 2.1
8.7
Embodied Carbon, kg CO2/kg material 22
2.9
Embodied Energy, MJ/kg 150
48
Embodied Water, L/kg 920
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.3
9.4 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 190
230 to 2970
Stiffness to Weight: Axial, points 13
7.1
Stiffness to Weight: Bending, points 58
18
Strength to Weight: Axial, points 29
13 to 27
Strength to Weight: Bending, points 38
14 to 23
Thermal Diffusivity, mm2/s 58
33
Thermal Shock Resistance, points 12
15 to 29

Alloy Composition

Copper (Cu), % 2.4 to 3.0
87 to 90
Iron (Fe), % 0
0.050 to 0.2
Lead (Pb), % 0
0 to 0.050
Magnesium (Mg), % 89.2 to 91.9
0
Manganese (Mn), % 0.25 to 0.75
0
Nickel (Ni), % 0 to 0.010
0.050 to 0.2
Phosphorus (P), % 0
0.020 to 0.050
Silicon (Si), % 0 to 0.2
0
Tin (Sn), % 0
2.5 to 4.0
Zinc (Zn), % 5.5 to 6.5
5.3 to 10.4
Residuals, % 0 to 0.3
0 to 0.2