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5021 Aluminum vs. 1070 Aluminum

Both 5021 aluminum and 1070 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 5021 aluminum and the bottom bar is 1070 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
68
Elongation at Break, % 1.1 to 3.4
4.5 to 39
Fatigue Strength, MPa 85 to 110
22 to 49
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 170
48 to 79
Tensile Strength: Ultimate (UTS), MPa 300 to 310
73 to 140
Tensile Strength: Yield (Proof), MPa 240 to 270
17 to 120

Thermal Properties

Latent Heat of Fusion, J/g 400
400
Maximum Temperature: Mechanical, °C 180
170
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 590
640
Specific Heat Capacity, J/kg-K 900
900
Thermal Conductivity, W/m-K 140
230
Thermal Expansion, µm/m-K 23
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
61
Electrical Conductivity: Equal Weight (Specific), % IACS 120
200

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.5
Density, g/cm3 2.7
2.7
Embodied Carbon, kg CO2/kg material 8.6
8.3
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1180
1200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.1 to 10
4.8 to 21
Resilience: Unit (Modulus of Resilience), kJ/m3 440 to 550
2.1 to 110
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
50
Strength to Weight: Axial, points 30 to 32
7.5 to 14
Strength to Weight: Bending, points 37
14 to 22
Thermal Diffusivity, mm2/s 57
94
Thermal Shock Resistance, points 13 to 14
3.3 to 6.1

Alloy Composition

Aluminum (Al), % 95.2 to 97.7
99.7 to 100
Chromium (Cr), % 0 to 0.15
0
Copper (Cu), % 0 to 0.15
0 to 0.040
Iron (Fe), % 0 to 0.5
0 to 0.25
Magnesium (Mg), % 2.2 to 2.8
0 to 0.030
Manganese (Mn), % 0.1 to 0.5
0 to 0.030
Silicon (Si), % 0 to 0.4
0 to 0.2
Titanium (Ti), % 0
0 to 0.030
Vanadium (V), % 0
0 to 0.050
Zinc (Zn), % 0 to 0.15
0 to 0.040
Residuals, % 0
0 to 0.030

Comparable Variants