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5005 Aluminum vs. S44800 Stainless Steel

5005 aluminum belongs to the aluminum alloys classification, while S44800 stainless steel belongs to the iron alloys. There are 31 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 5005 aluminum and the bottom bar is S44800 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 28 to 64
190
Elastic (Young's, Tensile) Modulus, GPa 68
210
Elongation at Break, % 1.1 to 23
23
Fatigue Strength, MPa 38 to 86
300
Poisson's Ratio 0.33
0.27
Shear Modulus, GPa 26
82
Shear Strength, MPa 70 to 130
370
Tensile Strength: Ultimate (UTS), MPa 110 to 230
590
Tensile Strength: Yield (Proof), MPa 41 to 210
450

Thermal Properties

Latent Heat of Fusion, J/g 400
300
Maximum Temperature: Mechanical, °C 180
1100
Melting Completion (Liquidus), °C 650
1460
Melting Onset (Solidus), °C 630
1410
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 200
17
Thermal Expansion, µm/m-K 24
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 52
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 170
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
19
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 8.3
3.8
Embodied Energy, MJ/kg 150
52
Embodied Water, L/kg 1190
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.3 to 22
120
Resilience: Unit (Modulus of Resilience), kJ/m3 12 to 320
480
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 11 to 23
21
Strength to Weight: Bending, points 19 to 31
20
Thermal Diffusivity, mm2/s 82
4.6
Thermal Shock Resistance, points 4.9 to 10
19

Alloy Composition

Aluminum (Al), % 97 to 99.5
0
Carbon (C), % 0
0 to 0.010
Chromium (Cr), % 0 to 0.1
28 to 30
Copper (Cu), % 0 to 0.2
0 to 0.15
Iron (Fe), % 0 to 0.7
62.6 to 66.5
Magnesium (Mg), % 0.5 to 1.1
0
Manganese (Mn), % 0 to 0.2
0 to 0.3
Molybdenum (Mo), % 0
3.5 to 4.2
Nickel (Ni), % 0
2.0 to 2.5
Nitrogen (N), % 0
0 to 0.020
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.3
0 to 0.2
Sulfur (S), % 0
0 to 0.020
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0 to 0.15
0