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1070A Aluminum vs. 5040 Aluminum

Both 1070A aluminum and 5040 aluminum are aluminum alloys. They have a very high 97% of their average alloy composition in common.

For each property being compared, the top bar is 1070A aluminum and the bottom bar is 5040 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 18 to 40
66 to 74
Elastic (Young's, Tensile) Modulus, GPa 68
70
Elongation at Break, % 2.3 to 33
5.7 to 6.8
Fatigue Strength, MPa 17 to 51
100 to 130
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 44 to 81
140 to 150
Tensile Strength: Ultimate (UTS), MPa 68 to 140
240 to 260
Tensile Strength: Yield (Proof), MPa 17 to 120
190 to 230

Thermal Properties

Latent Heat of Fusion, J/g 400
400
Maximum Temperature: Mechanical, °C 170
190
Melting Completion (Liquidus), °C 640
650
Melting Onset (Solidus), °C 640
600
Specific Heat Capacity, J/kg-K 900
900
Thermal Conductivity, W/m-K 230
160
Thermal Expansion, µm/m-K 23
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 60
41
Electrical Conductivity: Equal Weight (Specific), % IACS 200
130

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
9.5
Density, g/cm3 2.7
2.8
Embodied Carbon, kg CO2/kg material 8.2
8.3
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1200
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.0 to 18
14 to 15
Resilience: Unit (Modulus of Resilience), kJ/m3 2.1 to 100
260 to 380
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
50
Strength to Weight: Axial, points 7.0 to 14
24 to 26
Strength to Weight: Bending, points 14 to 22
31 to 32
Thermal Diffusivity, mm2/s 94
64
Thermal Shock Resistance, points 3.1 to 6.3
10 to 11

Alloy Composition

Aluminum (Al), % 99.7 to 100
95.2 to 98
Chromium (Cr), % 0
0.1 to 0.3
Copper (Cu), % 0 to 0.030
0 to 0.25
Iron (Fe), % 0 to 0.25
0 to 0.7
Magnesium (Mg), % 0 to 0.030
1.0 to 1.5
Manganese (Mn), % 0 to 0.030
0.9 to 1.4
Silicon (Si), % 0 to 0.2
0 to 0.3
Titanium (Ti), % 0 to 0.030
0
Zinc (Zn), % 0 to 0.070
0 to 0.25
Residuals, % 0
0 to 0.15

Comparable Variants