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1050A Aluminum vs. 1070A Aluminum

Both 1050A aluminum and 1070A aluminum are aluminum alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is 1050A aluminum and the bottom bar is 1070A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 20 to 45
18 to 40
Elastic (Young's, Tensile) Modulus, GPa 68
68
Elongation at Break, % 1.1 to 33
2.3 to 33
Fatigue Strength, MPa 22 to 55
17 to 51
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 44 to 97
44 to 81
Tensile Strength: Ultimate (UTS), MPa 68 to 170
68 to 140
Tensile Strength: Yield (Proof), MPa 22 to 150
17 to 120

Thermal Properties

Latent Heat of Fusion, J/g 400
400
Maximum Temperature: Mechanical, °C 170
170
Melting Completion (Liquidus), °C 660
640
Melting Onset (Solidus), °C 650
640
Specific Heat Capacity, J/kg-K 900
900
Thermal Conductivity, W/m-K 230
230
Thermal Expansion, µm/m-K 24
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 59
60
Electrical Conductivity: Equal Weight (Specific), % IACS 200
200

Otherwise Unclassified Properties

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

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 1.9 to 19
3.0 to 18
Resilience: Unit (Modulus of Resilience), kJ/m3 3.7 to 160
2.1 to 100
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
50
Strength to Weight: Axial, points 6.9 to 18
7.0 to 14
Strength to Weight: Bending, points 14 to 25
14 to 22
Thermal Diffusivity, mm2/s 94
94
Thermal Shock Resistance, points 3.0 to 7.6
3.1 to 6.3

Alloy Composition

Aluminum (Al), % 99.5 to 100
99.7 to 100
Copper (Cu), % 0 to 0.050
0 to 0.030
Iron (Fe), % 0 to 0.4
0 to 0.25
Magnesium (Mg), % 0 to 0.050
0 to 0.030
Manganese (Mn), % 0 to 0.050
0 to 0.030
Silicon (Si), % 0 to 0.25
0 to 0.2
Titanium (Ti), % 0 to 0.050
0 to 0.030
Zinc (Zn), % 0 to 0.070
0 to 0.070

Comparable Variants