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5457 Aluminum vs. EN 1.4469 Stainless Steel

5457 aluminum belongs to the aluminum alloys classification, while EN 1.4469 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 5457 aluminum and the bottom bar is EN 1.4469 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
210
Elongation at Break, % 6.0 to 22
25
Fatigue Strength, MPa 55 to 98
380
Poisson's Ratio 0.33
0.27
Shear Modulus, GPa 26
81
Tensile Strength: Ultimate (UTS), MPa 130 to 210
740
Tensile Strength: Yield (Proof), MPa 50 to 190
550

Thermal Properties

Latent Heat of Fusion, J/g 400
300
Maximum Temperature: Mechanical, °C 180
1100
Melting Completion (Liquidus), °C 660
1450
Melting Onset (Solidus), °C 630
1400
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 180
17
Thermal Expansion, µm/m-K 24
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 46
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 150
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
21
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 8.4
4.1
Embodied Energy, MJ/kg 160
57
Embodied Water, L/kg 1190
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12 to 23
170
Resilience: Unit (Modulus of Resilience), kJ/m3 18 to 250
730
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 13 to 21
26
Strength to Weight: Bending, points 21 to 28
23
Thermal Diffusivity, mm2/s 72
4.6
Thermal Shock Resistance, points 5.7 to 9.0
20

Alloy Composition

Aluminum (Al), % 97.8 to 99.05
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
25 to 27
Copper (Cu), % 0 to 0.2
0 to 1.3
Iron (Fe), % 0 to 0.1
56.4 to 65.9
Magnesium (Mg), % 0.8 to 1.2
0
Manganese (Mn), % 0.15 to 0.45
0 to 1.0
Molybdenum (Mo), % 0
3.0 to 5.0
Nickel (Ni), % 0
6.0 to 8.0
Nitrogen (N), % 0
0.12 to 0.22
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 0.080
0 to 1.0
Sulfur (S), % 0
0 to 0.025
Vanadium (V), % 0 to 0.050
0
Zinc (Zn), % 0 to 0.050
0
Residuals, % 0 to 0.1
0