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5083 Aluminum vs. S46800 Stainless Steel

5083 aluminum belongs to the aluminum alloys classification, while S46800 stainless steel belongs to the iron 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 5083 aluminum and the bottom bar is S46800 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 75 to 110
180
Elastic (Young's, Tensile) Modulus, GPa 68
200
Elongation at Break, % 1.1 to 17
25
Fatigue Strength, MPa 93 to 190
160
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
77
Shear Strength, MPa 170 to 220
300
Tensile Strength: Ultimate (UTS), MPa 290 to 390
470
Tensile Strength: Yield (Proof), MPa 110 to 340
230

Thermal Properties

Latent Heat of Fusion, J/g 400
290
Maximum Temperature: Corrosion, °C 65
500
Maximum Temperature: Mechanical, °C 190
920
Melting Completion (Liquidus), °C 640
1440
Melting Onset (Solidus), °C 580
1400
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 120
23
Thermal Expansion, µm/m-K 24
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 29
2.8
Electrical Conductivity: Equal Weight (Specific), % IACS 96
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 2.7
7.7
Embodied Carbon, kg CO2/kg material 8.9
2.6
Embodied Energy, MJ/kg 150
37
Embodied Water, L/kg 1170
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.2 to 42
98
Resilience: Unit (Modulus of Resilience), kJ/m3 95 to 860
130
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 29 to 40
17
Strength to Weight: Bending, points 36 to 44
18
Thermal Diffusivity, mm2/s 48
6.1
Thermal Shock Resistance, points 12 to 17
16

Alloy Composition

Aluminum (Al), % 92.4 to 95.6
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0.050 to 0.25
18 to 20
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0 to 0.4
76.5 to 81.8
Magnesium (Mg), % 4.0 to 4.9
0
Manganese (Mn), % 0.4 to 1.0
0 to 1.0
Nickel (Ni), % 0
0 to 0.5
Niobium (Nb), % 0
0.1 to 0.6
Nitrogen (N), % 0
0 to 0.030
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.15
0.070 to 0.3
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0 to 0.15
0