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ZC63A Magnesium vs. C34200 Brass

ZC63A magnesium belongs to the magnesium alloys classification, while C34200 brass belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, 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 C34200 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 48
100
Elongation at Break, % 3.3
3.0 to 17
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 19
40
Shear Strength, MPa 130
230 to 360
Tensile Strength: Ultimate (UTS), MPa 220
370 to 650
Tensile Strength: Yield (Proof), MPa 130
150 to 420

Thermal Properties

Latent Heat of Fusion, J/g 330
170
Maximum Temperature: Mechanical, °C 98
120
Melting Completion (Liquidus), °C 550
910
Melting Onset (Solidus), °C 470
890
Specific Heat Capacity, J/kg-K 950
380
Thermal Conductivity, W/m-K 120
120
Thermal Expansion, µm/m-K 26
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
26
Electrical Conductivity: Equal Weight (Specific), % IACS 140
29

Otherwise Unclassified Properties

Base Metal Price, % relative 13
24
Density, g/cm3 2.1
8.2
Embodied Carbon, kg CO2/kg material 22
2.6
Embodied Energy, MJ/kg 150
45
Embodied Water, L/kg 920
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.3
9.0 to 98
Resilience: Unit (Modulus of Resilience), kJ/m3 190
110 to 870
Stiffness to Weight: Axial, points 13
7.1
Stiffness to Weight: Bending, points 58
19
Strength to Weight: Axial, points 29
13 to 22
Strength to Weight: Bending, points 38
14 to 20
Thermal Diffusivity, mm2/s 58
37
Thermal Shock Resistance, points 12
12 to 22

Alloy Composition

Copper (Cu), % 2.4 to 3.0
62 to 65
Iron (Fe), % 0
0 to 0.1
Lead (Pb), % 0
1.5 to 2.5
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
0
Zinc (Zn), % 5.5 to 6.5
32 to 36.5
Residuals, % 0 to 0.3
0 to 0.4