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S42010 Stainless Steel vs. 204.0 Aluminum

S42010 stainless steel belongs to the iron alloys classification, while 204.0 aluminum belongs to the aluminum alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, 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 S42010 stainless steel and the bottom bar is 204.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
71
Elongation at Break, % 18
5.7 to 7.8
Fatigue Strength, MPa 220
63 to 77
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 76
27
Tensile Strength: Ultimate (UTS), MPa 590
230 to 340
Tensile Strength: Yield (Proof), MPa 350
180 to 220

Thermal Properties

Latent Heat of Fusion, J/g 280
390
Maximum Temperature: Mechanical, °C 800
170
Melting Completion (Liquidus), °C 1440
650
Melting Onset (Solidus), °C 1400
580
Specific Heat Capacity, J/kg-K 480
880
Thermal Conductivity, W/m-K 29
120
Thermal Expansion, µm/m-K 10
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.7
29 to 34
Electrical Conductivity: Equal Weight (Specific), % IACS 3.2
87 to 100

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
11
Density, g/cm3 7.7
3.0
Embodied Carbon, kg CO2/kg material 2.2
8.0
Embodied Energy, MJ/kg 30
150
Embodied Water, L/kg 110
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 95
12 to 23
Resilience: Unit (Modulus of Resilience), kJ/m3 310
220 to 350
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
46
Strength to Weight: Axial, points 21
21 to 31
Strength to Weight: Bending, points 20
28 to 36
Thermal Diffusivity, mm2/s 7.9
46
Thermal Shock Resistance, points 21
12 to 18

Alloy Composition

Aluminum (Al), % 0
93.4 to 95.5
Carbon (C), % 0.15 to 0.3
0
Chromium (Cr), % 13.5 to 15
0
Copper (Cu), % 0
4.2 to 5.0
Iron (Fe), % 80.9 to 85.6
0 to 0.35
Magnesium (Mg), % 0
0.15 to 0.35
Manganese (Mn), % 0 to 1.0
0 to 0.1
Molybdenum (Mo), % 0.4 to 0.85
0
Nickel (Ni), % 0.35 to 0.85
0 to 0.050
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 0.2
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