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852.0 Aluminum vs. S21900 Stainless Steel

852.0 aluminum belongs to the aluminum alloys classification, while S21900 stainless steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (4, 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 852.0 aluminum and the bottom bar is S21900 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 64
220
Elastic (Young's, Tensile) Modulus, GPa 70
200
Elongation at Break, % 3.4
50
Fatigue Strength, MPa 73
380
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
78
Shear Strength, MPa 130
510
Tensile Strength: Ultimate (UTS), MPa 200
710
Tensile Strength: Yield (Proof), MPa 150
390

Thermal Properties

Latent Heat of Fusion, J/g 370
290
Maximum Temperature: Mechanical, °C 190
980
Melting Completion (Liquidus), °C 640
1400
Melting Onset (Solidus), °C 210
1350
Specific Heat Capacity, J/kg-K 840
480
Thermal Conductivity, W/m-K 180
14
Thermal Expansion, µm/m-K 23
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 45
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 130
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 15
15
Density, g/cm3 3.2
7.7
Embodied Carbon, kg CO2/kg material 8.5
3.0
Embodied Energy, MJ/kg 160
43
Embodied Water, L/kg 1150
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.2
300
Resilience: Unit (Modulus of Resilience), kJ/m3 160
380
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 43
25
Strength to Weight: Axial, points 17
26
Strength to Weight: Bending, points 24
23
Thermal Diffusivity, mm2/s 65
3.8
Thermal Shock Resistance, points 8.7
15

Alloy Composition

Aluminum (Al), % 86.6 to 91.3
0
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0
19 to 21.5
Copper (Cu), % 1.7 to 2.3
0
Iron (Fe), % 0 to 0.7
59.4 to 67.4
Magnesium (Mg), % 0.6 to 0.9
0
Manganese (Mn), % 0 to 0.1
8.0 to 10
Nickel (Ni), % 0.9 to 1.5
5.5 to 7.5
Nitrogen (N), % 0
0.15 to 0.4
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 5.5 to 7.0
0
Titanium (Ti), % 0 to 0.2
0
Residuals, % 0 to 0.3
0