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852.0 Aluminum vs. S20431 Stainless Steel

852.0 aluminum belongs to the aluminum alloys classification, while S20431 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 S20431 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 64
210
Elastic (Young's, Tensile) Modulus, GPa 70
200
Elongation at Break, % 3.4
46
Fatigue Strength, MPa 73
320
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
76
Shear Strength, MPa 130
500
Tensile Strength: Ultimate (UTS), MPa 200
710
Tensile Strength: Yield (Proof), MPa 150
350

Thermal Properties

Latent Heat of Fusion, J/g 370
280
Maximum Temperature: Mechanical, °C 190
890
Melting Completion (Liquidus), °C 640
1400
Melting Onset (Solidus), °C 210
1360
Specific Heat Capacity, J/kg-K 840
480
Thermal Conductivity, W/m-K 180
15
Thermal Expansion, µm/m-K 23
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 45
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 130
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 15
12
Density, g/cm3 3.2
7.7
Embodied Carbon, kg CO2/kg material 8.5
2.5
Embodied Energy, MJ/kg 160
36
Embodied Water, L/kg 1150
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.2
270
Resilience: Unit (Modulus of Resilience), kJ/m3 160
310
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 43
25
Strength to Weight: Axial, points 17
25
Strength to Weight: Bending, points 24
23
Thermal Diffusivity, mm2/s 65
4.0
Thermal Shock Resistance, points 8.7
15

Alloy Composition

Aluminum (Al), % 86.6 to 91.3
0
Carbon (C), % 0
0 to 0.12
Chromium (Cr), % 0
17 to 18
Copper (Cu), % 1.7 to 2.3
1.5 to 3.5
Iron (Fe), % 0 to 0.7
66.1 to 74.4
Magnesium (Mg), % 0.6 to 0.9
0
Manganese (Mn), % 0 to 0.1
5.0 to 7.0
Nickel (Ni), % 0.9 to 1.5
2.0 to 4.0
Nitrogen (N), % 0
0.1 to 0.25
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