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ZC63A Magnesium vs. C69430 Brass

ZC63A magnesium belongs to the magnesium alloys classification, while C69430 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 C69430 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 48
110
Elongation at Break, % 3.3
17
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 19
42
Shear Strength, MPa 130
350
Tensile Strength: Ultimate (UTS), MPa 220
570
Tensile Strength: Yield (Proof), MPa 130
280

Thermal Properties

Latent Heat of Fusion, J/g 330
260
Maximum Temperature: Mechanical, °C 98
170
Melting Completion (Liquidus), °C 550
920
Melting Onset (Solidus), °C 470
820
Specific Heat Capacity, J/kg-K 950
410
Thermal Conductivity, W/m-K 120
26
Thermal Expansion, µm/m-K 26
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
6.2
Electrical Conductivity: Equal Weight (Specific), % IACS 140
6.7

Otherwise Unclassified Properties

Base Metal Price, % relative 13
27
Density, g/cm3 2.1
8.3
Embodied Carbon, kg CO2/kg material 22
2.7
Embodied Energy, MJ/kg 150
44
Embodied Water, L/kg 920
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.3
80
Resilience: Unit (Modulus of Resilience), kJ/m3 190
340
Stiffness to Weight: Axial, points 13
7.4
Stiffness to Weight: Bending, points 58
19
Strength to Weight: Axial, points 29
19
Strength to Weight: Bending, points 38
18
Thermal Diffusivity, mm2/s 58
7.7
Thermal Shock Resistance, points 12
20

Alloy Composition

Arsenic (As), % 0
0.030 to 0.060
Copper (Cu), % 2.4 to 3.0
80 to 83
Iron (Fe), % 0
0 to 0.2
Lead (Pb), % 0
0 to 0.3
Magnesium (Mg), % 89.2 to 91.9
0
Manganese (Mn), % 0.25 to 0.75
0
Nickel (Ni), % 0 to 0.010
0
Silicon (Si), % 0 to 0.2
3.5 to 4.5
Zinc (Zn), % 5.5 to 6.5
11.4 to 16.5
Residuals, % 0 to 0.3
0 to 0.5