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S44800 Stainless Steel vs. 5383 Aluminum

S44800 stainless steel belongs to the iron alloys classification, while 5383 aluminum belongs to the aluminum alloys. There are 32 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 S44800 stainless steel and the bottom bar is 5383 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
85 to 110
Elastic (Young's, Tensile) Modulus, GPa 210
68
Elongation at Break, % 23
6.7 to 15
Fatigue Strength, MPa 300
130 to 200
Poisson's Ratio 0.27
0.33
Shear Modulus, GPa 82
26
Shear Strength, MPa 370
190 to 220
Tensile Strength: Ultimate (UTS), MPa 590
310 to 370
Tensile Strength: Yield (Proof), MPa 450
150 to 310

Thermal Properties

Latent Heat of Fusion, J/g 300
390
Maximum Temperature: Corrosion, °C 460
65
Maximum Temperature: Mechanical, °C 1100
200
Melting Completion (Liquidus), °C 1460
650
Melting Onset (Solidus), °C 1410
540
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 17
130
Thermal Expansion, µm/m-K 11
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.6
29
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
97

Otherwise Unclassified Properties

Base Metal Price, % relative 19
9.5
Density, g/cm3 7.8
2.7
Embodied Carbon, kg CO2/kg material 3.8
9.0
Embodied Energy, MJ/kg 52
160
Embodied Water, L/kg 190
1170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
23 to 40
Resilience: Unit (Modulus of Resilience), kJ/m3 480
170 to 690
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
50
Strength to Weight: Axial, points 21
32 to 38
Strength to Weight: Bending, points 20
38 to 42
Thermal Diffusivity, mm2/s 4.6
51
Thermal Shock Resistance, points 19
14 to 16

Alloy Composition

Aluminum (Al), % 0
92 to 95.3
Carbon (C), % 0 to 0.010
0
Chromium (Cr), % 28 to 30
0 to 0.25
Copper (Cu), % 0 to 0.15
0 to 0.2
Iron (Fe), % 62.6 to 66.5
0 to 0.25
Magnesium (Mg), % 0
4.0 to 5.2
Manganese (Mn), % 0 to 0.3
0.7 to 1.0
Molybdenum (Mo), % 3.5 to 4.2
0
Nickel (Ni), % 2.0 to 2.5
0
Nitrogen (N), % 0 to 0.020
0
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.2
0 to 0.25
Sulfur (S), % 0 to 0.020
0
Titanium (Ti), % 0
0 to 0.15
Zinc (Zn), % 0
0 to 0.4
Zirconium (Zr), % 0
0 to 0.2
Residuals, % 0
0 to 0.15