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ZC63A Magnesium vs. C68400 Brass

ZC63A magnesium belongs to the magnesium alloys classification, while C68400 brass belongs to the copper alloys. There are 30 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 ZC63A magnesium and the bottom bar is C68400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 60
150
Elastic (Young's, Tensile) Modulus, GPa 48
110
Elongation at Break, % 3.3
18
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 19
41
Shear Strength, MPa 130
330
Tensile Strength: Ultimate (UTS), MPa 220
540
Tensile Strength: Yield (Proof), MPa 130
310

Thermal Properties

Latent Heat of Fusion, J/g 330
210
Maximum Temperature: Mechanical, °C 98
130
Melting Completion (Liquidus), °C 550
840
Melting Onset (Solidus), °C 470
820
Specific Heat Capacity, J/kg-K 950
400
Thermal Conductivity, W/m-K 120
66
Thermal Expansion, µm/m-K 26
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
87
Electrical Conductivity: Equal Weight (Specific), % IACS 140
99

Otherwise Unclassified Properties

Base Metal Price, % relative 13
23
Density, g/cm3 2.1
7.9
Embodied Carbon, kg CO2/kg material 22
2.7
Embodied Energy, MJ/kg 150
47
Embodied Water, L/kg 920
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.3
81
Resilience: Unit (Modulus of Resilience), kJ/m3 190
460
Stiffness to Weight: Axial, points 13
7.5
Stiffness to Weight: Bending, points 58
20
Strength to Weight: Axial, points 29
19
Strength to Weight: Bending, points 38
19
Thermal Diffusivity, mm2/s 58
21
Thermal Shock Resistance, points 12
18

Alloy Composition

Aluminum (Al), % 0
0 to 0.5
Boron (B), % 0
0.0010 to 0.030
Copper (Cu), % 2.4 to 3.0
59 to 64
Iron (Fe), % 0
0 to 1.0
Lead (Pb), % 0
0 to 0.090
Magnesium (Mg), % 89.2 to 91.9
0
Manganese (Mn), % 0.25 to 0.75
0.2 to 1.5
Nickel (Ni), % 0 to 0.010
0 to 0.5
Phosphorus (P), % 0
0.030 to 0.3
Silicon (Si), % 0 to 0.2
1.5 to 2.5
Tin (Sn), % 0
0 to 0.5
Zinc (Zn), % 5.5 to 6.5
28.6 to 39.3
Residuals, % 0 to 0.3
0 to 0.5