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5050 Aluminum vs. N08330 Stainless Steel

5050 aluminum belongs to the aluminum alloys classification, while N08330 stainless steel belongs to the iron alloys. There are 31 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 5050 aluminum and the bottom bar is N08330 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 36 to 68
180
Elastic (Young's, Tensile) Modulus, GPa 68
200
Elongation at Break, % 1.7 to 22
34
Fatigue Strength, MPa 45 to 100
190
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
76
Shear Strength, MPa 91 to 140
360
Tensile Strength: Ultimate (UTS), MPa 140 to 250
550
Tensile Strength: Yield (Proof), MPa 50 to 210
230

Thermal Properties

Latent Heat of Fusion, J/g 400
310
Maximum Temperature: Mechanical, °C 180
1050
Melting Completion (Liquidus), °C 650
1390
Melting Onset (Solidus), °C 630
1340
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 190
12
Thermal Expansion, µm/m-K 24
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 50
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 170
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
32
Density, g/cm3 2.7
8.0
Embodied Carbon, kg CO2/kg material 8.4
5.4
Embodied Energy, MJ/kg 150
77
Embodied Water, L/kg 1190
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.1 to 24
150
Resilience: Unit (Modulus of Resilience), kJ/m3 18 to 330
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 15 to 26
19
Strength to Weight: Bending, points 22 to 33
18
Thermal Diffusivity, mm2/s 79
3.1
Thermal Shock Resistance, points 6.3 to 11
13

Alloy Composition

Aluminum (Al), % 96.3 to 98.9
0
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0 to 0.1
17 to 20
Copper (Cu), % 0 to 0.2
0 to 1.0
Iron (Fe), % 0 to 0.7
38.3 to 48.3
Lead (Pb), % 0
0 to 0.0050
Magnesium (Mg), % 1.1 to 1.8
0
Manganese (Mn), % 0 to 0.1
0 to 2.0
Nickel (Ni), % 0
34 to 37
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.4
0.75 to 1.5
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0
0 to 0.025
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0 to 0.15
0