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S38100 Stainless Steel vs. 5005A Aluminum

S38100 stainless steel belongs to the iron alloys classification, while 5005A aluminum belongs to the aluminum alloys. There are 31 material properties with values for both materials. Properties with values for just one material (3, 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 S38100 stainless steel and the bottom bar is 5005A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
29 to 64
Elastic (Young's, Tensile) Modulus, GPa 200
68
Elongation at Break, % 45
1.1 to 21
Fatigue Strength, MPa 210
38 to 82
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 76
26
Shear Strength, MPa 400
71 to 130
Tensile Strength: Ultimate (UTS), MPa 580
110 to 230
Tensile Strength: Yield (Proof), MPa 230
43 to 210

Thermal Properties

Latent Heat of Fusion, J/g 320
400
Maximum Temperature: Mechanical, °C 970
180
Melting Completion (Liquidus), °C 1400
660
Melting Onset (Solidus), °C 1350
630
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 15
200
Thermal Expansion, µm/m-K 16
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
52
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
170

Otherwise Unclassified Properties

Base Metal Price, % relative 20
9.5
Density, g/cm3 7.8
2.7
Embodied Carbon, kg CO2/kg material 3.8
8.3
Embodied Energy, MJ/kg 54
150
Embodied Water, L/kg 160
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
2.0 to 19
Resilience: Unit (Modulus of Resilience), kJ/m3 140
14 to 310
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
50
Strength to Weight: Axial, points 21
12 to 24
Strength to Weight: Bending, points 20
19 to 31
Thermal Diffusivity, mm2/s 4.0
82
Thermal Shock Resistance, points 13
5.0 to 10

Alloy Composition

Aluminum (Al), % 0
97.5 to 99.3
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 17 to 19
0 to 0.1
Copper (Cu), % 0
0 to 0.050
Iron (Fe), % 57.9 to 64
0 to 0.45
Magnesium (Mg), % 0
0.7 to 1.1
Manganese (Mn), % 0 to 2.0
0 to 0.15
Nickel (Ni), % 17.5 to 18.5
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 1.5 to 2.5
0 to 0.3
Sulfur (S), % 0 to 0.030
0
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.15