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5383 Aluminum vs. S17400 Stainless Steel

5383 aluminum belongs to the aluminum alloys classification, while S17400 stainless steel belongs to the iron alloys. There are 32 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 5383 aluminum and the bottom bar is S17400 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 85 to 110
280 to 440
Elastic (Young's, Tensile) Modulus, GPa 68
190
Elongation at Break, % 6.7 to 15
11 to 21
Fatigue Strength, MPa 130 to 200
380 to 670
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
75
Shear Strength, MPa 190 to 220
570 to 830
Tensile Strength: Ultimate (UTS), MPa 310 to 370
910 to 1390
Tensile Strength: Yield (Proof), MPa 150 to 310
580 to 1250

Thermal Properties

Latent Heat of Fusion, J/g 390
280
Maximum Temperature: Corrosion, °C 65
450
Maximum Temperature: Mechanical, °C 200
850
Melting Completion (Liquidus), °C 650
1440
Melting Onset (Solidus), °C 540
1400
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 130
17
Thermal Expansion, µm/m-K 24
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 29
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 97
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
14
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 9.0
2.7
Embodied Energy, MJ/kg 160
39
Embodied Water, L/kg 1170
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 23 to 40
140 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 170 to 690
880 to 4060
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 32 to 38
32 to 49
Strength to Weight: Bending, points 38 to 42
27 to 35
Thermal Diffusivity, mm2/s 51
4.5
Thermal Shock Resistance, points 14 to 16
30 to 46

Alloy Composition

Aluminum (Al), % 92 to 95.3
0
Carbon (C), % 0
0 to 0.070
Chromium (Cr), % 0 to 0.25
15 to 17
Copper (Cu), % 0 to 0.2
3.0 to 5.0
Iron (Fe), % 0 to 0.25
70.4 to 78.9
Magnesium (Mg), % 4.0 to 5.2
0
Manganese (Mn), % 0.7 to 1.0
0 to 1.0
Nickel (Ni), % 0
3.0 to 5.0
Niobium (Nb), % 0
0.15 to 0.45
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.25
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 0 to 0.4
0
Zirconium (Zr), % 0 to 0.2
0
Residuals, % 0 to 0.15
0