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1080 Aluminum vs. ASTM A372 Grade F Steel

1080 aluminum belongs to the aluminum alloys classification, while ASTM A372 grade F steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is 1080 aluminum and the bottom bar is ASTM A372 grade F steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
190
Elongation at Break, % 4.6 to 40
20 to 22
Fatigue Strength, MPa 21 to 48
310 to 380
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
73
Shear Strength, MPa 49 to 78
410 to 570
Tensile Strength: Ultimate (UTS), MPa 72 to 130
650 to 910
Tensile Strength: Yield (Proof), MPa 17 to 120
430 to 550

Thermal Properties

Latent Heat of Fusion, J/g 400
250
Maximum Temperature: Mechanical, °C 170
420
Melting Completion (Liquidus), °C 640
1460
Melting Onset (Solidus), °C 640
1420
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 230
44
Thermal Expansion, µm/m-K 23
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 61
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 200
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
2.4
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 8.3
1.5
Embodied Energy, MJ/kg 160
20
Embodied Water, L/kg 1200
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.7 to 21
130 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 2.1 to 100
500 to 810
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 7.4 to 14
23 to 32
Strength to Weight: Bending, points 14 to 22
21 to 27
Thermal Diffusivity, mm2/s 94
12
Thermal Shock Resistance, points 3.2 to 6.0
19 to 27

Alloy Composition

Aluminum (Al), % 99.8 to 100
0
Carbon (C), % 0
0.3 to 0.4
Chromium (Cr), % 0
0.8 to 1.2
Copper (Cu), % 0 to 0.030
0
Gallium (Ga), % 0 to 0.030
0
Iron (Fe), % 0 to 0.15
96.8 to 97.9
Magnesium (Mg), % 0 to 0.020
0
Manganese (Mn), % 0 to 0.020
0.7 to 1.0
Molybdenum (Mo), % 0
0.15 to 0.25
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0 to 0.15
0.15 to 0.35
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0 to 0.030
0
Vanadium (V), % 0 to 0.050
0
Zinc (Zn), % 0 to 0.030
0
Residuals, % 0 to 0.020
0

Comparable Variants