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SAE-AISI 1086 Steel vs. 5154 Aluminum

SAE-AISI 1086 steel belongs to the iron alloys classification, while 5154 aluminum belongs to the aluminum alloys. There are 30 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 SAE-AISI 1086 steel and the bottom bar is 5154 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
68
Elongation at Break, % 11
3.4 to 20
Fatigue Strength, MPa 300 to 360
100 to 160
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 72
26
Shear Strength, MPa 450 to 520
140 to 210
Tensile Strength: Ultimate (UTS), MPa 760 to 870
240 to 360
Tensile Strength: Yield (Proof), MPa 480 to 580
94 to 270

Thermal Properties

Latent Heat of Fusion, J/g 240
400
Maximum Temperature: Mechanical, °C 400
190
Melting Completion (Liquidus), °C 1460
640
Melting Onset (Solidus), °C 1410
590
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 50
130
Thermal Expansion, µm/m-K 11
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
32
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
110

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
9.5
Density, g/cm3 7.8
2.7
Embodied Carbon, kg CO2/kg material 1.4
8.8
Embodied Energy, MJ/kg 19
150
Embodied Water, L/kg 45
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 79 to 84
11 to 39
Resilience: Unit (Modulus of Resilience), kJ/m3 610 to 890
64 to 540
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
51
Strength to Weight: Axial, points 27 to 31
25 to 37
Strength to Weight: Bending, points 24 to 26
32 to 42
Thermal Diffusivity, mm2/s 14
52
Thermal Shock Resistance, points 26 to 30
10 to 16

Alloy Composition

Aluminum (Al), % 0
94.4 to 96.8
Carbon (C), % 0.8 to 0.93
0
Chromium (Cr), % 0
0.15 to 0.35
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 98.5 to 98.9
0 to 0.4
Magnesium (Mg), % 0
3.1 to 3.9
Manganese (Mn), % 0.3 to 0.5
0 to 0.1
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0
0 to 0.25
Sulfur (S), % 0 to 0.050
0
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.15