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B390.0 Aluminum vs. S32202 Stainless Steel

B390.0 aluminum belongs to the aluminum alloys classification, while S32202 stainless steel belongs to the iron 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 B390.0 aluminum and the bottom bar is S32202 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 76
200
Elongation at Break, % 0.88
34
Fatigue Strength, MPa 170
400
Poisson's Ratio 0.33
0.27
Shear Modulus, GPa 29
79
Tensile Strength: Ultimate (UTS), MPa 320
730
Tensile Strength: Yield (Proof), MPa 250
510

Thermal Properties

Latent Heat of Fusion, J/g 640
290
Maximum Temperature: Mechanical, °C 170
1030
Melting Completion (Liquidus), °C 580
1430
Melting Onset (Solidus), °C 580
1380
Specific Heat Capacity, J/kg-K 880
480
Thermal Conductivity, W/m-K 130
15
Thermal Expansion, µm/m-K 20
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 88
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 11
12
Density, g/cm3 2.8
7.7
Embodied Carbon, kg CO2/kg material 7.3
2.6
Embodied Energy, MJ/kg 130
37
Embodied Water, L/kg 940
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.6
220
Resilience: Unit (Modulus of Resilience), kJ/m3 410
650
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 51
25
Strength to Weight: Axial, points 32
27
Strength to Weight: Bending, points 38
24
Thermal Diffusivity, mm2/s 55
4.0
Thermal Shock Resistance, points 15
20

Alloy Composition

Aluminum (Al), % 72.7 to 79.6
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
21.5 to 24
Copper (Cu), % 4.0 to 5.0
0
Iron (Fe), % 0 to 1.3
69.4 to 77.3
Magnesium (Mg), % 0.45 to 0.65
0
Manganese (Mn), % 0 to 0.5
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.45
Nickel (Ni), % 0 to 0.1
1.0 to 2.8
Nitrogen (N), % 0
0.18 to 0.26
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 16 to 18
0 to 1.0
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 1.5
0
Residuals, % 0 to 0.2
0