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5154 Aluminum vs. EN 1.4490 Stainless Steel

5154 aluminum belongs to the aluminum alloys classification, while EN 1.4490 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 5154 aluminum and the bottom bar is EN 1.4490 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
200
Elongation at Break, % 3.4 to 20
34
Fatigue Strength, MPa 100 to 160
210
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
78
Tensile Strength: Ultimate (UTS), MPa 240 to 360
560
Tensile Strength: Yield (Proof), MPa 94 to 270
260

Thermal Properties

Latent Heat of Fusion, J/g 400
300
Maximum Temperature: Mechanical, °C 190
990
Melting Completion (Liquidus), °C 640
1440
Melting Onset (Solidus), °C 590
1390
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 130
15
Thermal Expansion, µm/m-K 24
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 110
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
19
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 8.8
3.7
Embodied Energy, MJ/kg 150
52
Embodied Water, L/kg 1180
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11 to 39
160
Resilience: Unit (Modulus of Resilience), kJ/m3 64 to 540
170
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 51
25
Strength to Weight: Axial, points 25 to 37
20
Strength to Weight: Bending, points 32 to 42
19
Thermal Diffusivity, mm2/s 52
4.1
Thermal Shock Resistance, points 10 to 16
16

Alloy Composition

Aluminum (Al), % 94.4 to 96.8
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0.15 to 0.35
18 to 20
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0 to 0.4
61.7 to 70.9
Magnesium (Mg), % 3.1 to 3.9
0
Manganese (Mn), % 0 to 0.1
0 to 2.0
Molybdenum (Mo), % 0
2.0 to 2.5
Nickel (Ni), % 0
9.0 to 12
Nitrogen (N), % 0
0.12 to 0.2
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 0.25
0 to 1.5
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.15
0