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ZC63A Magnesium vs. C44500 Brass

ZC63A magnesium belongs to the magnesium alloys classification, while C44500 brass belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (6, 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 C44500 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 48
110
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 19
41
Tensile Strength: Ultimate (UTS), MPa 220
350
Tensile Strength: Yield (Proof), MPa 130
120

Thermal Properties

Latent Heat of Fusion, J/g 330
180
Maximum Temperature: Mechanical, °C 98
140
Melting Completion (Liquidus), °C 550
940
Melting Onset (Solidus), °C 470
900
Specific Heat Capacity, J/kg-K 950
380
Thermal Conductivity, W/m-K 120
110
Thermal Expansion, µm/m-K 26
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
25
Electrical Conductivity: Equal Weight (Specific), % IACS 140
27

Otherwise Unclassified Properties

Base Metal Price, % relative 13
26
Density, g/cm3 2.1
8.3
Embodied Carbon, kg CO2/kg material 22
2.7
Embodied Energy, MJ/kg 150
46
Embodied Water, L/kg 920
330

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 190
65
Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 58
19
Strength to Weight: Axial, points 29
12
Strength to Weight: Bending, points 38
13
Thermal Diffusivity, mm2/s 58
35
Thermal Shock Resistance, points 12
12

Alloy Composition

Copper (Cu), % 2.4 to 3.0
70 to 73
Iron (Fe), % 0
0 to 0.060
Lead (Pb), % 0
0 to 0.070
Magnesium (Mg), % 89.2 to 91.9
0
Manganese (Mn), % 0.25 to 0.75
0
Nickel (Ni), % 0 to 0.010
0
Phosphorus (P), % 0
0.020 to 0.1
Silicon (Si), % 0 to 0.2
0
Tin (Sn), % 0
0.9 to 1.2
Zinc (Zn), % 5.5 to 6.5
25.2 to 29.1
Residuals, % 0 to 0.3
0 to 0.4