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5042 Aluminum vs. 7003 Aluminum

Both 5042 aluminum and 7003 aluminum are aluminum alloys. They have a moderately high 94% of their average alloy composition in common.

For each property being compared, the top bar is 5042 aluminum and the bottom bar is 7003 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
70
Elongation at Break, % 1.1 to 3.4
11
Fatigue Strength, MPa 97 to 120
130 to 150
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
26
Shear Strength, MPa 200
210 to 230
Tensile Strength: Ultimate (UTS), MPa 340 to 360
350 to 390
Tensile Strength: Yield (Proof), MPa 270 to 310
300 to 310

Thermal Properties

Latent Heat of Fusion, J/g 400
380
Maximum Temperature: Mechanical, °C 180
200
Melting Completion (Liquidus), °C 640
630
Melting Onset (Solidus), °C 570
510
Specific Heat Capacity, J/kg-K 900
870
Thermal Conductivity, W/m-K 130
150
Thermal Expansion, µm/m-K 24
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
36
Electrical Conductivity: Equal Weight (Specific), % IACS 110
110

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.5
Density, g/cm3 2.7
2.9
Embodied Carbon, kg CO2/kg material 8.8
8.1
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1180
1140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.6 to 12
37 to 41
Resilience: Unit (Modulus of Resilience), kJ/m3 550 to 720
630 to 710
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
47
Strength to Weight: Axial, points 35 to 37
33 to 37
Strength to Weight: Bending, points 40 to 42
37 to 40
Thermal Diffusivity, mm2/s 53
59
Thermal Shock Resistance, points 15 to 16
15 to 17

Alloy Composition

Aluminum (Al), % 94.2 to 96.8
90.6 to 94.5
Chromium (Cr), % 0 to 0.1
0 to 0.2
Copper (Cu), % 0 to 0.15
0 to 0.2
Iron (Fe), % 0 to 0.35
0 to 0.35
Magnesium (Mg), % 3.0 to 4.0
0.5 to 1.0
Manganese (Mn), % 0.2 to 0.5
0 to 0.3
Silicon (Si), % 0 to 0.2
0 to 0.3
Titanium (Ti), % 0 to 0.1
0 to 0.2
Zinc (Zn), % 0 to 0.25
5.0 to 6.5
Zirconium (Zr), % 0
0.050 to 0.25
Residuals, % 0
0 to 0.15