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5454 Aluminum vs. S44537 Stainless Steel

5454 aluminum belongs to the aluminum alloys classification, while S44537 stainless steel belongs to the iron 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 5454 aluminum and the bottom bar is S44537 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 61 to 93
180
Elastic (Young's, Tensile) Modulus, GPa 69
200
Elongation at Break, % 2.3 to 18
21
Fatigue Strength, MPa 83 to 160
230
Poisson's Ratio 0.33
0.27
Shear Modulus, GPa 26
79
Shear Strength, MPa 140 to 200
320
Tensile Strength: Ultimate (UTS), MPa 230 to 350
510
Tensile Strength: Yield (Proof), MPa 97 to 290
360

Thermal Properties

Latent Heat of Fusion, J/g 400
290
Maximum Temperature: Mechanical, °C 190
1000
Melting Completion (Liquidus), °C 650
1480
Melting Onset (Solidus), °C 600
1430
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 130
21
Thermal Expansion, µm/m-K 24
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 34
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 110
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
19
Density, g/cm3 2.7
7.9
Embodied Carbon, kg CO2/kg material 8.6
3.4
Embodied Energy, MJ/kg 150
50
Embodied Water, L/kg 1180
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.3 to 34
95
Resilience: Unit (Modulus of Resilience), kJ/m3 68 to 590
320
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 23 to 36
18
Strength to Weight: Bending, points 30 to 41
18
Thermal Diffusivity, mm2/s 55
5.6
Thermal Shock Resistance, points 10 to 16
17

Alloy Composition

Aluminum (Al), % 94.5 to 97.1
0 to 0.1
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0.050 to 0.2
20 to 24
Copper (Cu), % 0 to 0.1
0 to 0.5
Iron (Fe), % 0 to 0.4
69 to 78.6
Lanthanum (La), % 0
0.040 to 0.2
Magnesium (Mg), % 2.4 to 3.0
0
Manganese (Mn), % 0.5 to 1.0
0 to 0.8
Nickel (Ni), % 0
0 to 0.5
Niobium (Nb), % 0
0.2 to 1.0
Nitrogen (N), % 0
0 to 0.040
Phosphorus (P), % 0
0 to 0.050
Silicon (Si), % 0 to 0.25
0.1 to 0.6
Sulfur (S), % 0
0 to 0.0060
Titanium (Ti), % 0 to 0.2
0.020 to 0.2
Tungsten (W), % 0
1.0 to 3.0
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0 to 0.15
0