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5454 Aluminum vs. AISI 440C Stainless Steel

5454 aluminum belongs to the aluminum alloys classification, while AISI 440C stainless steel belongs to the iron alloys. There are 29 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 AISI 440C stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
200
Elongation at Break, % 2.3 to 18
2.0 to 14
Fatigue Strength, MPa 83 to 160
260 to 840
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
76
Shear Strength, MPa 140 to 200
430 to 1120
Tensile Strength: Ultimate (UTS), MPa 230 to 350
710 to 1970
Tensile Strength: Yield (Proof), MPa 97 to 290
450 to 1900

Thermal Properties

Latent Heat of Fusion, J/g 400
280
Maximum Temperature: Mechanical, °C 190
870
Melting Completion (Liquidus), °C 650
1480
Melting Onset (Solidus), °C 600
1370
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 130
22
Thermal Expansion, µm/m-K 24
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 34
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 110
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.0
Density, g/cm3 2.7
7.7
Embodied Carbon, kg CO2/kg material 8.6
2.2
Embodied Energy, MJ/kg 150
31
Embodied Water, L/kg 1180
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.3 to 34
39 to 88
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 23 to 36
26 to 71
Strength to Weight: Bending, points 30 to 41
23 to 46
Thermal Diffusivity, mm2/s 55
6.0
Thermal Shock Resistance, points 10 to 16
26 to 71

Alloy Composition

Aluminum (Al), % 94.5 to 97.1
0
Carbon (C), % 0
1.0 to 1.2
Chromium (Cr), % 0.050 to 0.2
16 to 18
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0 to 0.4
78 to 83.1
Magnesium (Mg), % 2.4 to 3.0
0
Manganese (Mn), % 0.5 to 1.0
0 to 1.0
Molybdenum (Mo), % 0
0 to 0.75
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.25
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0 to 0.15
0

Comparable Variants