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S42030 Stainless Steel vs. 2036 Aluminum

S42030 stainless steel belongs to the iron alloys classification, while 2036 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, 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 S42030 stainless steel and the bottom bar is 2036 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
70
Elongation at Break, % 16
24
Fatigue Strength, MPa 250
130
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 76
26
Shear Strength, MPa 410
210
Tensile Strength: Ultimate (UTS), MPa 670
340
Tensile Strength: Yield (Proof), MPa 410
200

Thermal Properties

Latent Heat of Fusion, J/g 280
390
Maximum Temperature: Mechanical, °C 780
190
Melting Completion (Liquidus), °C 1450
650
Melting Onset (Solidus), °C 1410
560
Specific Heat Capacity, J/kg-K 470
890
Thermal Conductivity, W/m-K 28
160
Thermal Expansion, µm/m-K 10
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.7
41
Electrical Conductivity: Equal Weight (Specific), % IACS 3.1
130

Otherwise Unclassified Properties

Base Metal Price, % relative 10
10
Density, g/cm3 7.8
2.9
Embodied Carbon, kg CO2/kg material 2.5
8.1
Embodied Energy, MJ/kg 34
150
Embodied Water, L/kg 110
1160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
70
Resilience: Unit (Modulus of Resilience), kJ/m3 440
270
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
48
Strength to Weight: Axial, points 24
33
Strength to Weight: Bending, points 22
38
Thermal Diffusivity, mm2/s 7.7
62
Thermal Shock Resistance, points 24
15

Alloy Composition

Aluminum (Al), % 0
94.4 to 97.4
Carbon (C), % 0 to 0.3
0
Chromium (Cr), % 12 to 14
0 to 0.1
Copper (Cu), % 2.0 to 3.0
2.2 to 3.0
Iron (Fe), % 77.6 to 85
0 to 0.5
Magnesium (Mg), % 0
0.3 to 0.6
Manganese (Mn), % 0 to 1.0
0.1 to 0.4
Molybdenum (Mo), % 1.0 to 3.0
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.15
Zinc (Zn), % 0
0 to 0.25
Residuals, % 0
0 to 0.15