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ZC63A Magnesium vs. C21000 Brass

ZC63A magnesium belongs to the magnesium alloys classification, while C21000 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 C21000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 48
110
Elongation at Break, % 3.3
2.9 to 50
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 19
43
Shear Strength, MPa 130
180 to 280
Tensile Strength: Ultimate (UTS), MPa 220
240 to 450
Tensile Strength: Yield (Proof), MPa 130
69 to 440

Thermal Properties

Latent Heat of Fusion, J/g 330
200
Maximum Temperature: Mechanical, °C 98
190
Melting Completion (Liquidus), °C 550
1070
Melting Onset (Solidus), °C 470
1050
Specific Heat Capacity, J/kg-K 950
390
Thermal Conductivity, W/m-K 120
230
Thermal Expansion, µm/m-K 26
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
56
Electrical Conductivity: Equal Weight (Specific), % IACS 140
57

Otherwise Unclassified Properties

Base Metal Price, % relative 13
30
Density, g/cm3 2.1
8.8
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
13 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 190
21 to 830
Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 58
18
Strength to Weight: Axial, points 29
7.4 to 14
Strength to Weight: Bending, points 38
9.6 to 15
Thermal Diffusivity, mm2/s 58
69
Thermal Shock Resistance, points 12
8.1 to 15

Alloy Composition

Copper (Cu), % 2.4 to 3.0
94 to 96
Iron (Fe), % 0
0 to 0.050
Lead (Pb), % 0
0 to 0.030
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
3.7 to 6.0
Residuals, % 0 to 0.3
0 to 0.2