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1060 Aluminum vs. S21800 Stainless Steel

1060 aluminum belongs to the aluminum alloys classification, while S21800 stainless steel belongs to the iron alloys. There are 26 material properties with values for both materials. Properties with values for just one material (10, 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 1060 aluminum and the bottom bar is S21800 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
190
Elongation at Break, % 1.1 to 30
40
Fatigue Strength, MPa 15 to 50
330
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
75
Shear Strength, MPa 42 to 75
510
Tensile Strength: Ultimate (UTS), MPa 67 to 130
740
Tensile Strength: Yield (Proof), MPa 17 to 110
390

Thermal Properties

Latent Heat of Fusion, J/g 400
340
Maximum Temperature: Mechanical, °C 170
900
Melting Completion (Liquidus), °C 660
1360
Melting Onset (Solidus), °C 650
1310
Specific Heat Capacity, J/kg-K 900
500
Thermal Expansion, µm/m-K 24
16

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
15
Density, g/cm3 2.7
7.5
Embodied Carbon, kg CO2/kg material 8.3
3.1
Embodied Energy, MJ/kg 160
45
Embodied Water, L/kg 1200
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 0.57 to 37
250
Resilience: Unit (Modulus of Resilience), kJ/m3 2.1 to 89
390
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
26
Strength to Weight: Axial, points 6.9 to 13
27
Strength to Weight: Bending, points 14 to 21
24
Thermal Shock Resistance, points 3.0 to 5.6
17

Alloy Composition

Aluminum (Al), % 99.6 to 100
0
Carbon (C), % 0
0 to 0.1
Chromium (Cr), % 0
16 to 18
Copper (Cu), % 0 to 0.050
0
Iron (Fe), % 0 to 0.35
59.1 to 65.4
Magnesium (Mg), % 0 to 0.030
0
Manganese (Mn), % 0 to 0.030
7.0 to 9.0
Nickel (Ni), % 0
8.0 to 9.0
Nitrogen (N), % 0
0.080 to 0.18
Phosphorus (P), % 0
0 to 0.060
Silicon (Si), % 0 to 0.25
3.5 to 4.5
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.030
0
Vanadium (V), % 0 to 0.050
0
Zinc (Zn), % 0 to 0.050
0