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S42010 Stainless Steel vs. 308.0 Aluminum

S42010 stainless steel belongs to the iron alloys classification, while 308.0 aluminum belongs to the aluminum alloys. There are 30 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 S42010 stainless steel and the bottom bar is 308.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
73
Elongation at Break, % 18
2.0
Fatigue Strength, MPa 220
89
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 76
27
Shear Strength, MPa 370
150
Tensile Strength: Ultimate (UTS), MPa 590
190
Tensile Strength: Yield (Proof), MPa 350
110

Thermal Properties

Latent Heat of Fusion, J/g 280
470
Maximum Temperature: Mechanical, °C 800
170
Melting Completion (Liquidus), °C 1440
620
Melting Onset (Solidus), °C 1400
540
Specific Heat Capacity, J/kg-K 480
870
Thermal Conductivity, W/m-K 29
140
Thermal Expansion, µm/m-K 10
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.7
37
Electrical Conductivity: Equal Weight (Specific), % IACS 3.2
110

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
10
Density, g/cm3 7.7
2.9
Embodied Carbon, kg CO2/kg material 2.2
7.7
Embodied Energy, MJ/kg 30
140
Embodied Water, L/kg 110
1080

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 95
3.3
Resilience: Unit (Modulus of Resilience), kJ/m3 310
83
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
47
Strength to Weight: Axial, points 21
18
Strength to Weight: Bending, points 20
25
Thermal Diffusivity, mm2/s 7.9
55
Thermal Shock Resistance, points 21
9.2

Alloy Composition

Aluminum (Al), % 0
85.7 to 91
Carbon (C), % 0.15 to 0.3
0
Chromium (Cr), % 13.5 to 15
0
Copper (Cu), % 0
4.0 to 5.0
Iron (Fe), % 80.9 to 85.6
0 to 1.0
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 0 to 1.0
0 to 0.5
Molybdenum (Mo), % 0.4 to 0.85
0
Nickel (Ni), % 0.35 to 0.85
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
5.0 to 6.0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 1.0
Residuals, % 0
0 to 0.5