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EN AC-43400 Aluminum vs. S32202 Stainless Steel

EN AC-43400 aluminum belongs to the aluminum alloys classification, while S32202 stainless steel belongs to the iron 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 EN AC-43400 aluminum and the bottom bar is S32202 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
250
Elastic (Young's, Tensile) Modulus, GPa 72
200
Elongation at Break, % 1.1
34
Fatigue Strength, MPa 110
400
Poisson's Ratio 0.33
0.27
Shear Modulus, GPa 27
79
Tensile Strength: Ultimate (UTS), MPa 270
730
Tensile Strength: Yield (Proof), MPa 160
510

Thermal Properties

Latent Heat of Fusion, J/g 540
290
Maximum Temperature: Mechanical, °C 170
1030
Melting Completion (Liquidus), °C 600
1430
Melting Onset (Solidus), °C 590
1380
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 140
15
Thermal Expansion, µm/m-K 22
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 110
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 2.6
7.7
Embodied Carbon, kg CO2/kg material 7.8
2.6
Embodied Energy, MJ/kg 150
37
Embodied Water, L/kg 1070
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.6
220
Resilience: Unit (Modulus of Resilience), kJ/m3 180
650
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 54
25
Strength to Weight: Axial, points 29
27
Strength to Weight: Bending, points 36
24
Thermal Diffusivity, mm2/s 59
4.0
Thermal Shock Resistance, points 12
20

Alloy Composition

Aluminum (Al), % 86 to 90.8
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
21.5 to 24
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0 to 1.0
69.4 to 77.3
Lead (Pb), % 0 to 0.15
0
Magnesium (Mg), % 0.2 to 0.5
0
Manganese (Mn), % 0 to 0.55
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.45
Nickel (Ni), % 0 to 0.15
1.0 to 2.8
Nitrogen (N), % 0
0.18 to 0.26
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 9.0 to 11
0 to 1.0
Sulfur (S), % 0
0 to 0.010
Tin (Sn), % 0 to 0.050
0
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.15
0
Residuals, % 0 to 0.15
0