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EN 1.4658 Stainless Steel vs. 354.0 Aluminum

EN 1.4658 stainless steel belongs to the iron alloys classification, while 354.0 aluminum belongs to the aluminum alloys. There are 27 material properties with values for both materials. Properties with values for just one material (7, 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 1.4658 stainless steel and the bottom bar is 354.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
71
Elongation at Break, % 28
2.4 to 3.0
Fatigue Strength, MPa 530
92 to 120
Poisson's Ratio 0.27
0.33
Shear Modulus, GPa 81
27
Tensile Strength: Ultimate (UTS), MPa 900
360 to 380
Tensile Strength: Yield (Proof), MPa 730
280 to 310

Thermal Properties

Latent Heat of Fusion, J/g 300
530
Maximum Temperature: Mechanical, °C 1100
170
Melting Completion (Liquidus), °C 1450
600
Melting Onset (Solidus), °C 1400
550
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 16
130
Thermal Expansion, µm/m-K 13
21

Otherwise Unclassified Properties

Base Metal Price, % relative 25
9.5
Density, g/cm3 7.8
2.7
Embodied Carbon, kg CO2/kg material 4.5
7.8
Embodied Energy, MJ/kg 61
150
Embodied Water, L/kg 200
1070

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
8.6 to 9.8
Resilience: Unit (Modulus of Resilience), kJ/m3 1280
540 to 670
Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 25
52
Strength to Weight: Axial, points 32
37 to 39
Strength to Weight: Bending, points 26
42 to 44
Thermal Diffusivity, mm2/s 4.3
52
Thermal Shock Resistance, points 24
17 to 18

Alloy Composition

Aluminum (Al), % 0
87.3 to 89.4
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 26 to 29
0
Cobalt (Co), % 0.5 to 2.0
0
Copper (Cu), % 0 to 1.0
1.6 to 2.0
Iron (Fe), % 50.9 to 63.7
0 to 0.2
Magnesium (Mg), % 0
0.4 to 0.6
Manganese (Mn), % 0 to 1.5
0 to 0.1
Molybdenum (Mo), % 4.0 to 5.0
0
Nickel (Ni), % 5.5 to 9.5
0
Nitrogen (N), % 0.3 to 0.5
0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 0.5
8.6 to 9.4
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15