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S30815 Stainless Steel vs. 206.0 Aluminum

S30815 stainless steel belongs to the iron alloys classification, while 206.0 aluminum belongs to the aluminum alloys. There are 31 material properties with values for both materials. Properties with values for just one material (6, 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 S30815 stainless steel and the bottom bar is 206.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
95 to 110
Elastic (Young's, Tensile) Modulus, GPa 200
71
Elongation at Break, % 45
8.4 to 12
Fatigue Strength, MPa 320
88 to 210
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
27
Shear Strength, MPa 480
260
Tensile Strength: Ultimate (UTS), MPa 680
330 to 440
Tensile Strength: Yield (Proof), MPa 350
190 to 350

Thermal Properties

Latent Heat of Fusion, J/g 310
390
Maximum Temperature: Mechanical, °C 1020
170
Melting Completion (Liquidus), °C 1400
650
Melting Onset (Solidus), °C 1360
570
Specific Heat Capacity, J/kg-K 490
880
Thermal Conductivity, W/m-K 15
120
Thermal Expansion, µm/m-K 17
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
33
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
99

Otherwise Unclassified Properties

Base Metal Price, % relative 17
11
Density, g/cm3 7.7
3.0
Embodied Carbon, kg CO2/kg material 3.3
8.0
Embodied Energy, MJ/kg 47
150
Embodied Water, L/kg 160
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 260
24 to 49
Resilience: Unit (Modulus of Resilience), kJ/m3 310
270 to 840
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
46
Strength to Weight: Axial, points 25
30 to 40
Strength to Weight: Bending, points 22
35 to 42
Thermal Diffusivity, mm2/s 4.0
46
Thermal Shock Resistance, points 15
17 to 23

Alloy Composition

Aluminum (Al), % 0
93.3 to 95.3
Carbon (C), % 0.050 to 0.1
0
Cerium (Ce), % 0.030 to 0.080
0
Chromium (Cr), % 20 to 22
0
Copper (Cu), % 0
4.2 to 5.0
Iron (Fe), % 62.8 to 68.4
0 to 0.15
Magnesium (Mg), % 0
0.15 to 0.35
Manganese (Mn), % 0 to 0.8
0.2 to 0.5
Nickel (Ni), % 10 to 12
0 to 0.050
Nitrogen (N), % 0.14 to 0.2
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 1.4 to 2.0
0 to 0.1
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0 to 0.050
Titanium (Ti), % 0
0.15 to 0.3
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15