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5454 Aluminum vs. EN 1.4903 Stainless Steel

5454 aluminum belongs to the aluminum alloys classification, while EN 1.4903 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 5454 aluminum and the bottom bar is EN 1.4903 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
190
Elongation at Break, % 2.3 to 18
20 to 21
Fatigue Strength, MPa 83 to 160
320 to 330
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
75
Shear Strength, MPa 140 to 200
420
Tensile Strength: Ultimate (UTS), MPa 230 to 350
670 to 680
Tensile Strength: Yield (Proof), MPa 97 to 290
500

Thermal Properties

Latent Heat of Fusion, J/g 400
270
Maximum Temperature: Mechanical, °C 190
650
Melting Completion (Liquidus), °C 650
1460
Melting Onset (Solidus), °C 600
1420
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 130
26
Thermal Expansion, µm/m-K 24
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 34
3.4
Electrical Conductivity: Equal Weight (Specific), % IACS 110
4.0

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
7.0
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 8.6
2.6
Embodied Energy, MJ/kg 150
36
Embodied Water, L/kg 1180
88

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.3 to 34
120 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 68 to 590
650
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 23 to 36
24
Strength to Weight: Bending, points 30 to 41
22
Thermal Diffusivity, mm2/s 55
7.0
Thermal Shock Resistance, points 10 to 16
23

Alloy Composition

Aluminum (Al), % 94.5 to 97.1
0 to 0.040
Carbon (C), % 0
0.080 to 0.12
Chromium (Cr), % 0.050 to 0.2
8.0 to 9.5
Copper (Cu), % 0 to 0.1
0 to 0.3
Iron (Fe), % 0 to 0.4
87.1 to 90.5
Magnesium (Mg), % 2.4 to 3.0
0
Manganese (Mn), % 0.5 to 1.0
0.3 to 0.6
Molybdenum (Mo), % 0
0.85 to 1.1
Nickel (Ni), % 0
0 to 0.4
Niobium (Nb), % 0
0.060 to 0.1
Nitrogen (N), % 0
0.030 to 0.070
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.25
0 to 0.5
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0 to 0.2
0
Vanadium (V), % 0
0.18 to 0.25
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0 to 0.15
0