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5042 Aluminum vs. ZA-12

5042 aluminum belongs to the aluminum alloys classification, while ZA-12 belongs to the zinc alloys. There are 30 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 5042 aluminum and the bottom bar is ZA-12.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
83
Elongation at Break, % 1.1 to 3.4
1.6 to 5.3
Fatigue Strength, MPa 97 to 120
73 to 120
Poisson's Ratio 0.33
0.26
Shear Modulus, GPa 26
33
Shear Strength, MPa 200
240 to 300
Tensile Strength: Ultimate (UTS), MPa 340 to 360
260 to 400
Tensile Strength: Yield (Proof), MPa 270 to 310
210 to 320

Thermal Properties

Latent Heat of Fusion, J/g 400
120
Maximum Temperature: Mechanical, °C 180
100
Melting Completion (Liquidus), °C 640
430
Melting Onset (Solidus), °C 570
380
Specific Heat Capacity, J/kg-K 900
450
Thermal Conductivity, W/m-K 130
120
Thermal Expansion, µm/m-K 24
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
28
Electrical Conductivity: Equal Weight (Specific), % IACS 110
42

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
11
Density, g/cm3 2.7
6.0
Embodied Carbon, kg CO2/kg material 8.8
3.4
Embodied Energy, MJ/kg 150
64
Embodied Water, L/kg 1180
440

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.6 to 12
4.0 to 20
Resilience: Unit (Modulus of Resilience), kJ/m3 550 to 720
260 to 620
Stiffness to Weight: Axial, points 14
7.6
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 35 to 37
12 to 19
Strength to Weight: Bending, points 40 to 42
15 to 20
Thermal Diffusivity, mm2/s 53
43
Thermal Shock Resistance, points 15 to 16
9.4 to 14

Alloy Composition

Aluminum (Al), % 94.2 to 96.8
10.5 to 11.5
Cadmium (Cd), % 0
0 to 0.0060
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 0 to 0.15
0.5 to 1.2
Iron (Fe), % 0 to 0.35
0 to 0.075
Lead (Pb), % 0
0 to 0.0060
Magnesium (Mg), % 3.0 to 4.0
0.015 to 0.030
Manganese (Mn), % 0.2 to 0.5
0
Nickel (Ni), % 0
0 to 0.020
Silicon (Si), % 0 to 0.2
0 to 0.060
Tin (Sn), % 0
0 to 0.0030
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.25
87.1 to 89
Residuals, % 0 to 0.15
0