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1050A Aluminum vs. S21600 Stainless Steel

1050A aluminum belongs to the aluminum alloys classification, while S21600 stainless steel belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (8, 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 1050A aluminum and the bottom bar is S21600 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 20 to 45
200
Elastic (Young's, Tensile) Modulus, GPa 68
200
Elongation at Break, % 1.1 to 33
46
Fatigue Strength, MPa 22 to 55
360
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
79
Shear Strength, MPa 44 to 97
500
Tensile Strength: Ultimate (UTS), MPa 68 to 170
710
Tensile Strength: Yield (Proof), MPa 22 to 150
390

Thermal Properties

Latent Heat of Fusion, J/g 400
290
Maximum Temperature: Mechanical, °C 170
990
Melting Completion (Liquidus), °C 660
1420
Melting Onset (Solidus), °C 650
1380
Specific Heat Capacity, J/kg-K 900
480
Thermal Expansion, µm/m-K 24
17

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
17
Density, g/cm3 2.7
7.7
Embodied Carbon, kg CO2/kg material 8.2
3.6
Embodied Energy, MJ/kg 150
50
Embodied Water, L/kg 1200
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 1.9 to 19
270
Resilience: Unit (Modulus of Resilience), kJ/m3 3.7 to 160
370
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 6.9 to 18
25
Strength to Weight: Bending, points 14 to 25
23
Thermal Shock Resistance, points 3.0 to 7.6
15

Alloy Composition

Aluminum (Al), % 99.5 to 100
0
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0
17.5 to 22
Copper (Cu), % 0 to 0.050
0
Iron (Fe), % 0 to 0.4
57.6 to 67.8
Magnesium (Mg), % 0 to 0.050
0
Manganese (Mn), % 0 to 0.050
7.5 to 9.0
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 0
5.0 to 7.0
Nitrogen (N), % 0
0.25 to 0.5
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.25
0 to 0.75
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.050
0
Zinc (Zn), % 0 to 0.070
0