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A380.0 Aluminum vs. S21600 Stainless Steel

A380.0 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 (9, 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 A380.0 aluminum and the bottom bar is S21600 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
200
Elastic (Young's, Tensile) Modulus, GPa 73
200
Elongation at Break, % 3.3
46
Fatigue Strength, MPa 140
360
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
79
Shear Strength, MPa 190
500
Tensile Strength: Ultimate (UTS), MPa 290
710
Tensile Strength: Yield (Proof), MPa 160
390

Thermal Properties

Latent Heat of Fusion, J/g 510
290
Maximum Temperature: Mechanical, °C 170
990
Melting Completion (Liquidus), °C 590
1420
Melting Onset (Solidus), °C 550
1380
Specific Heat Capacity, J/kg-K 870
480
Thermal Expansion, µm/m-K 22
17

Otherwise Unclassified Properties

Base Metal Price, % relative 11
17
Density, g/cm3 2.9
7.7
Embodied Carbon, kg CO2/kg material 7.5
3.6
Embodied Energy, MJ/kg 140
50
Embodied Water, L/kg 1040
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.3
270
Resilience: Unit (Modulus of Resilience), kJ/m3 180
370
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 48
25
Strength to Weight: Axial, points 28
25
Strength to Weight: Bending, points 34
23
Thermal Shock Resistance, points 13
15

Alloy Composition

Aluminum (Al), % 80.3 to 89.5
0
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0
17.5 to 22
Copper (Cu), % 3.0 to 4.0
0
Iron (Fe), % 0 to 1.3
57.6 to 67.8
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.5
7.5 to 9.0
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 0 to 0.5
5.0 to 7.0
Nitrogen (N), % 0
0.25 to 0.5
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 7.5 to 9.5
0 to 0.75
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 0.35
0
Zinc (Zn), % 0 to 3.0
0
Residuals, % 0 to 0.5
0