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SAE-AISI 1086 Steel vs. 6063 Aluminum

SAE-AISI 1086 steel belongs to the iron alloys classification, while 6063 aluminum belongs to the aluminum alloys. There are 31 material properties with values for both materials. Properties with values for just one material (2, 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 6063 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 260
25 to 95
Elastic (Young's, Tensile) Modulus, GPa 190
68
Elongation at Break, % 11
7.3 to 21
Fatigue Strength, MPa 300 to 360
39 to 95
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 72
26
Shear Strength, MPa 450 to 520
70 to 190
Tensile Strength: Ultimate (UTS), MPa 760 to 870
110 to 300
Tensile Strength: Yield (Proof), MPa 480 to 580
49 to 270

Thermal Properties

Latent Heat of Fusion, J/g 240
400
Maximum Temperature: Mechanical, °C 400
160
Melting Completion (Liquidus), °C 1460
650
Melting Onset (Solidus), °C 1410
620
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 50
190 to 220
Thermal Expansion, µm/m-K 11
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
49 to 58
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
160 to 190

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
8.3
Embodied Energy, MJ/kg 19
150
Embodied Water, L/kg 45
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 79 to 84
13 to 27
Resilience: Unit (Modulus of Resilience), kJ/m3 610 to 890
18 to 540
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
50
Strength to Weight: Axial, points 27 to 31
11 to 31
Strength to Weight: Bending, points 24 to 26
18 to 37
Thermal Diffusivity, mm2/s 14
79 to 89
Thermal Shock Resistance, points 26 to 30
4.8 to 13

Alloy Composition

Aluminum (Al), % 0
97.5 to 99.4
Carbon (C), % 0.8 to 0.93
0
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 98.5 to 98.9
0 to 0.35
Magnesium (Mg), % 0
0.45 to 0.9
Manganese (Mn), % 0.3 to 0.5
0 to 0.1
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0
0.2 to 0.6
Sulfur (S), % 0 to 0.050
0
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15