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S35500 Stainless Steel vs. 1080 Aluminum

S35500 stainless steel belongs to the iron alloys classification, while 1080 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 S35500 stainless steel and the bottom bar is 1080 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
68
Elongation at Break, % 14
4.6 to 40
Fatigue Strength, MPa 690 to 730
21 to 48
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 78
26
Shear Strength, MPa 810 to 910
49 to 78
Tensile Strength: Ultimate (UTS), MPa 1330 to 1490
72 to 130
Tensile Strength: Yield (Proof), MPa 1200 to 1280
17 to 120

Thermal Properties

Latent Heat of Fusion, J/g 280
400
Maximum Temperature: Mechanical, °C 870
170
Melting Completion (Liquidus), °C 1460
640
Melting Onset (Solidus), °C 1420
640
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 16
230
Thermal Expansion, µm/m-K 11
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
61
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
200

Otherwise Unclassified Properties

Base Metal Price, % relative 16
9.5
Density, g/cm3 7.8
2.7
Embodied Carbon, kg CO2/kg material 3.5
8.3
Embodied Energy, MJ/kg 47
160
Embodied Water, L/kg 130
1200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180 to 190
4.7 to 21
Resilience: Unit (Modulus of Resilience), kJ/m3 3610 to 4100
2.1 to 100
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
50
Strength to Weight: Axial, points 47 to 53
7.4 to 14
Strength to Weight: Bending, points 34 to 37
14 to 22
Thermal Diffusivity, mm2/s 4.4
94
Thermal Shock Resistance, points 44 to 49
3.2 to 6.0

Alloy Composition

Aluminum (Al), % 0
99.8 to 100
Carbon (C), % 0.1 to 0.15
0
Chromium (Cr), % 15 to 16
0
Copper (Cu), % 0
0 to 0.030
Gallium (Ga), % 0
0 to 0.030
Iron (Fe), % 73.2 to 77.7
0 to 0.15
Magnesium (Mg), % 0
0 to 0.020
Manganese (Mn), % 0.5 to 1.3
0 to 0.020
Molybdenum (Mo), % 2.5 to 3.2
0
Nickel (Ni), % 4.0 to 5.0
0
Niobium (Nb), % 0.1 to 0.5
0
Nitrogen (N), % 0.070 to 0.13
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.5
0 to 0.15
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.030
Vanadium (V), % 0
0 to 0.050
Zinc (Zn), % 0
0 to 0.030
Residuals, % 0
0 to 0.020

Comparable Variants