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1085 Aluminum vs. 1230A Aluminum

Both 1085 aluminum and 1230A aluminum are aluminum alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is 1085 aluminum and the bottom bar is 1230A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
69
Elongation at Break, % 4.5 to 39
4.5 to 34
Fatigue Strength, MPa 22 to 49
35 to 74
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 48 to 79
59 to 99
Tensile Strength: Ultimate (UTS), MPa 73 to 140
89 to 170
Tensile Strength: Yield (Proof), MPa 17 to 120
29 to 150

Thermal Properties

Latent Heat of Fusion, J/g 400
400
Maximum Temperature: Mechanical, °C 170
170
Melting Completion (Liquidus), °C 640
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 61
60
Electrical Conductivity: Equal Weight (Specific), % IACS 200
200

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.0
Density, g/cm3 2.7
2.7
Embodied Carbon, kg CO2/kg material 8.3
8.2
Embodied Energy, MJ/kg 160
150
Embodied Water, L/kg 1200
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.8 to 21
6.4 to 23
Resilience: Unit (Modulus of Resilience), kJ/m3 2.1 to 110
5.9 to 150
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
50
Strength to Weight: Axial, points 7.5 to 14
9.1 to 17
Strength to Weight: Bending, points 14 to 22
16 to 25
Thermal Diffusivity, mm2/s 94
93
Thermal Shock Resistance, points 3.3 to 6.1
4.0 to 7.6

Alloy Composition

Aluminum (Al), % 99.85 to 100
99.3 to 100
Copper (Cu), % 0 to 0.030
0 to 0.1
Gallium (Ga), % 0 to 0.030
0
Iron (Fe), % 0 to 0.12
0 to 0.7
Magnesium (Mg), % 0 to 0.020
0 to 0.050
Manganese (Mn), % 0 to 0.020
0 to 0.050
Silicon (Si), % 0 to 0.1
0 to 0.7
Titanium (Ti), % 0 to 0.020
0
Vanadium (V), % 0 to 0.050
0
Zinc (Zn), % 0 to 0.030
0 to 0.050
Residuals, % 0 to 0.010
0

Comparable Variants