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S66286 Stainless Steel vs. 1050 Aluminum

S66286 stainless steel belongs to the iron alloys classification, while 1050 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 S66286 stainless steel and the bottom bar is 1050 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
68
Elongation at Break, % 17 to 40
4.6 to 37
Fatigue Strength, MPa 240 to 410
31 to 57
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 75
26
Shear Strength, MPa 420 to 630
52 to 81
Tensile Strength: Ultimate (UTS), MPa 620 to 1020
76 to 140
Tensile Strength: Yield (Proof), MPa 280 to 670
25 to 120

Thermal Properties

Latent Heat of Fusion, J/g 300
400
Maximum Temperature: Mechanical, °C 920
170
Melting Completion (Liquidus), °C 1430
640
Melting Onset (Solidus), °C 1370
650
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 15
230
Thermal Expansion, µm/m-K 17
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
61
Electrical Conductivity: Equal Weight (Specific), % IACS 2.2
200

Otherwise Unclassified Properties

Base Metal Price, % relative 26
9.5
Density, g/cm3 7.9
2.7
Embodied Carbon, kg CO2/kg material 6.0
8.3
Embodied Energy, MJ/kg 87
160
Embodied Water, L/kg 170
1200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150 to 200
5.4 to 22
Resilience: Unit (Modulus of Resilience), kJ/m3 190 to 1150
4.6 to 110
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
50
Strength to Weight: Axial, points 22 to 36
7.8 to 14
Strength to Weight: Bending, points 20 to 28
15 to 22
Thermal Diffusivity, mm2/s 4.0
94
Thermal Shock Resistance, points 13 to 22
3.4 to 6.2

Alloy Composition

Aluminum (Al), % 0 to 0.35
99.5 to 100
Boron (B), % 0.0010 to 0.010
0
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 13.5 to 16
0
Copper (Cu), % 0
0 to 0.050
Iron (Fe), % 49.1 to 59.5
0 to 0.4
Magnesium (Mg), % 0
0 to 0.050
Manganese (Mn), % 0 to 2.0
0 to 0.050
Molybdenum (Mo), % 1.0 to 1.5
0
Nickel (Ni), % 24 to 27
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 0.25
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 1.9 to 2.4
0 to 0.030
Vanadium (V), % 0.1 to 0.5
0 to 0.050
Zinc (Zn), % 0
0 to 0.050

Comparable Variants