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1435 Aluminum vs. 1235 Aluminum

Both 1435 aluminum and 1235 aluminum are aluminum alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is 1435 aluminum and the bottom bar is 1235 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
69
Elongation at Break, % 4.1 to 32
28 to 34
Fatigue Strength, MPa 27 to 49
23 to 58
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 54 to 87
52 to 56
Tensile Strength: Ultimate (UTS), MPa 81 to 150
80 to 84
Tensile Strength: Yield (Proof), MPa 23 to 130
23 to 57

Thermal Properties

Latent Heat of Fusion, J/g 400
400
Maximum Temperature: Mechanical, °C 170
170
Melting Completion (Liquidus), °C 650
640
Melting Onset (Solidus), °C 640
640
Specific Heat Capacity, J/kg-K 900
900
Thermal Conductivity, W/m-K 230
230
Thermal Expansion, µm/m-K 23
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 60
60
Electrical Conductivity: Equal Weight (Specific), % IACS 200
200

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
9.5
Density, g/cm3 2.7
2.7
Embodied Carbon, kg CO2/kg material 8.2
8.3
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1190
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.0 to 20
17 to 25
Resilience: Unit (Modulus of Resilience), kJ/m3 3.8 to 110
3.8 to 24
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
50
Strength to Weight: Axial, points 8.3 to 15
8.2 to 8.6
Strength to Weight: Bending, points 15 to 23
15 to 16
Thermal Diffusivity, mm2/s 93
93
Thermal Shock Resistance, points 3.6 to 6.7
3.6 to 3.7

Alloy Composition

Aluminum (Al), % 99.35 to 99.7
99.35 to 100
Copper (Cu), % 0 to 0.020
0 to 0.050
Iron (Fe), % 0.3 to 0.5
0 to 0.65
Magnesium (Mg), % 0 to 0.050
0 to 0.050
Manganese (Mn), % 0 to 0.050
0 to 0.050
Silicon (Si), % 0 to 0.15
0 to 0.65
Titanium (Ti), % 0 to 0.030
0 to 0.060
Vanadium (V), % 0
0 to 0.050
Zinc (Zn), % 0 to 0.1
0 to 0.1