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EN 1.4401 Stainless Steel vs. 332.0 Aluminum

EN 1.4401 stainless steel belongs to the iron alloys classification, while 332.0 aluminum belongs to the aluminum alloys. There are 31 material properties with values for both materials. Properties with values for just one material (3, 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 1.4401 stainless steel and the bottom bar is 332.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 270
110
Elastic (Young's, Tensile) Modulus, GPa 200
73
Elongation at Break, % 14 to 40
1.0
Fatigue Strength, MPa 200 to 320
90
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 78
27
Shear Strength, MPa 410 to 550
190
Tensile Strength: Ultimate (UTS), MPa 600 to 900
250
Tensile Strength: Yield (Proof), MPa 230 to 570
190

Thermal Properties

Latent Heat of Fusion, J/g 290
530
Maximum Temperature: Mechanical, °C 950
170
Melting Completion (Liquidus), °C 1440
580
Melting Onset (Solidus), °C 1400
530
Specific Heat Capacity, J/kg-K 470
880
Thermal Conductivity, W/m-K 15
100
Thermal Expansion, µm/m-K 16
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
26
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
84

Otherwise Unclassified Properties

Base Metal Price, % relative 19
10
Density, g/cm3 7.9
2.8
Embodied Carbon, kg CO2/kg material 3.8
7.8
Embodied Energy, MJ/kg 52
140
Embodied Water, L/kg 150
1040

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 190
2.3
Resilience: Unit (Modulus of Resilience), kJ/m3 130 to 800
250
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
50
Strength to Weight: Axial, points 21 to 32
24
Strength to Weight: Bending, points 20 to 26
31
Thermal Diffusivity, mm2/s 4.0
42
Thermal Shock Resistance, points 13 to 20
12

Alloy Composition

Aluminum (Al), % 0
80.1 to 89
Carbon (C), % 0 to 0.070
0
Chromium (Cr), % 16.5 to 18.5
0
Copper (Cu), % 0
2.0 to 4.0
Iron (Fe), % 62.8 to 71.5
0 to 1.2
Magnesium (Mg), % 0
0.5 to 1.5
Manganese (Mn), % 0 to 2.0
0 to 0.5
Molybdenum (Mo), % 2.0 to 2.5
0
Nickel (Ni), % 10 to 13
0 to 0.5
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 1.0
8.5 to 10.5
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 1.0
Residuals, % 0
0 to 0.5