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1235 Aluminum vs. 7003 Aluminum

Both 1235 aluminum and 7003 aluminum are aluminum alloys. They have a moderately high 93% of their average alloy composition in common.

For each property being compared, the top bar is 1235 aluminum and the bottom bar is 7003 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
70
Elongation at Break, % 28 to 34
11
Fatigue Strength, MPa 23 to 58
130 to 150
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
26
Shear Strength, MPa 52 to 56
210 to 230
Tensile Strength: Ultimate (UTS), MPa 80 to 84
350 to 390
Tensile Strength: Yield (Proof), MPa 23 to 57
300 to 310

Thermal Properties

Latent Heat of Fusion, J/g 400
380
Maximum Temperature: Mechanical, °C 170
200
Melting Completion (Liquidus), °C 640
630
Melting Onset (Solidus), °C 640
510
Specific Heat Capacity, J/kg-K 900
870
Thermal Conductivity, W/m-K 230
150
Thermal Expansion, µm/m-K 23
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 60
36
Electrical Conductivity: Equal Weight (Specific), % IACS 200
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 8.3
8.1
Embodied Energy, MJ/kg 160
150
Embodied Water, L/kg 1190
1140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 17 to 25
37 to 41
Resilience: Unit (Modulus of Resilience), kJ/m3 3.8 to 24
630 to 710
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
47
Strength to Weight: Axial, points 8.2 to 8.6
33 to 37
Strength to Weight: Bending, points 15 to 16
37 to 40
Thermal Diffusivity, mm2/s 93
59
Thermal Shock Resistance, points 3.6 to 3.7
15 to 17

Alloy Composition

Aluminum (Al), % 99.35 to 100
90.6 to 94.5
Chromium (Cr), % 0
0 to 0.2
Copper (Cu), % 0 to 0.050
0 to 0.2
Iron (Fe), % 0 to 0.65
0 to 0.35
Magnesium (Mg), % 0 to 0.050
0.5 to 1.0
Manganese (Mn), % 0 to 0.050
0 to 0.3
Silicon (Si), % 0 to 0.65
0 to 0.3
Titanium (Ti), % 0 to 0.060
0 to 0.2
Vanadium (V), % 0 to 0.050
0
Zinc (Zn), % 0 to 0.1
5.0 to 6.5
Zirconium (Zr), % 0
0.050 to 0.25
Residuals, % 0
0 to 0.15