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ZC63A Magnesium vs. C32000 Brass

ZC63A magnesium belongs to the magnesium alloys classification, while C32000 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 C32000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 48
110
Elongation at Break, % 3.3
6.8 to 29
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 19
41
Shear Strength, MPa 130
180 to 280
Tensile Strength: Ultimate (UTS), MPa 220
270 to 470
Tensile Strength: Yield (Proof), MPa 130
78 to 390

Thermal Properties

Latent Heat of Fusion, J/g 330
190
Maximum Temperature: Mechanical, °C 98
170
Melting Completion (Liquidus), °C 550
1020
Melting Onset (Solidus), °C 470
990
Specific Heat Capacity, J/kg-K 950
380
Thermal Conductivity, W/m-K 120
160
Thermal Expansion, µm/m-K 26
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
36
Electrical Conductivity: Equal Weight (Specific), % IACS 140
37

Otherwise Unclassified Properties

Base Metal Price, % relative 13
28
Density, g/cm3 2.1
8.7
Embodied Carbon, kg CO2/kg material 22
2.6
Embodied Energy, MJ/kg 150
42
Embodied Water, L/kg 920
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.3
30 to 59
Resilience: Unit (Modulus of Resilience), kJ/m3 190
28 to 680
Stiffness to Weight: Axial, points 13
7.1
Stiffness to Weight: Bending, points 58
18
Strength to Weight: Axial, points 29
8.8 to 15
Strength to Weight: Bending, points 38
11 to 16
Thermal Diffusivity, mm2/s 58
47
Thermal Shock Resistance, points 12
9.5 to 16

Alloy Composition

Copper (Cu), % 2.4 to 3.0
83.5 to 86.5
Iron (Fe), % 0
0 to 0.1
Lead (Pb), % 0
1.5 to 2.2
Magnesium (Mg), % 89.2 to 91.9
0
Manganese (Mn), % 0.25 to 0.75
0
Nickel (Ni), % 0 to 0.010
0 to 0.25
Silicon (Si), % 0 to 0.2
0
Zinc (Zn), % 5.5 to 6.5
10.6 to 15
Residuals, % 0 to 0.3
0 to 0.4