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A535.0 Aluminum vs. SAE-AISI 1144 Steel

A535.0 aluminum belongs to the aluminum alloys classification, while SAE-AISI 1144 steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, 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 A535.0 aluminum and the bottom bar is SAE-AISI 1144 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 67
190
Elongation at Break, % 9.0
11 to 17
Fatigue Strength, MPa 95
280 to 430
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 25
72
Tensile Strength: Ultimate (UTS), MPa 250
750 to 840
Tensile Strength: Yield (Proof), MPa 120
420 to 690

Thermal Properties

Latent Heat of Fusion, J/g 390
250
Maximum Temperature: Mechanical, °C 170
400
Melting Completion (Liquidus), °C 620
1450
Melting Onset (Solidus), °C 550
1410
Specific Heat Capacity, J/kg-K 910
470
Thermal Conductivity, W/m-K 100
51
Thermal Expansion, µm/m-K 24
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 23
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 79
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
1.9
Density, g/cm3 2.6
7.8
Embodied Carbon, kg CO2/kg material 9.3
1.4
Embodied Energy, MJ/kg 160
19
Embodied Water, L/kg 1180
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
91 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 120
480 to 1290
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 51
24
Strength to Weight: Axial, points 26
27 to 30
Strength to Weight: Bending, points 33
23 to 25
Thermal Diffusivity, mm2/s 42
14
Thermal Shock Resistance, points 11
22 to 24

Alloy Composition

Aluminum (Al), % 91.4 to 93.4
0
Carbon (C), % 0
0.4 to 0.48
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0 to 0.2
97.5 to 98
Magnesium (Mg), % 6.5 to 7.5
0
Manganese (Mn), % 0.1 to 0.25
1.4 to 1.7
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.2
0
Sulfur (S), % 0
0.24 to 0.33
Titanium (Ti), % 0 to 0.25
0
Residuals, % 0 to 0.15
0