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5050 Aluminum vs. S44536 Stainless Steel

5050 aluminum belongs to the aluminum alloys classification, while S44536 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 S44536 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 36 to 68
170
Elastic (Young's, Tensile) Modulus, GPa 68
200
Elongation at Break, % 1.7 to 22
22
Fatigue Strength, MPa 45 to 100
190
Poisson's Ratio 0.33
0.27
Shear Modulus, GPa 26
78
Shear Strength, MPa 91 to 140
290
Tensile Strength: Ultimate (UTS), MPa 140 to 250
460
Tensile Strength: Yield (Proof), MPa 50 to 210
280

Thermal Properties

Latent Heat of Fusion, J/g 400
290
Maximum Temperature: Mechanical, °C 180
990
Melting Completion (Liquidus), °C 650
1440
Melting Onset (Solidus), °C 630
1390
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 190
21
Thermal Expansion, µm/m-K 24
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 50
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 170
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
13
Density, g/cm3 2.7
7.7
Embodied Carbon, kg CO2/kg material 8.4
2.8
Embodied Energy, MJ/kg 150
41
Embodied Water, L/kg 1190
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.1 to 24
89
Resilience: Unit (Modulus of Resilience), kJ/m3 18 to 330
200
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 15 to 26
17
Strength to Weight: Bending, points 22 to 33
17
Thermal Diffusivity, mm2/s 79
5.6
Thermal Shock Resistance, points 6.3 to 11
16

Alloy Composition

Aluminum (Al), % 96.3 to 98.9
0
Carbon (C), % 0
0 to 0.015
Chromium (Cr), % 0 to 0.1
20 to 23
Copper (Cu), % 0 to 0.2
0
Iron (Fe), % 0 to 0.7
72.8 to 80
Magnesium (Mg), % 1.1 to 1.8
0
Manganese (Mn), % 0 to 0.1
0 to 1.0
Nickel (Ni), % 0
0 to 0.5
Niobium (Nb), % 0
0.050 to 0.8
Nitrogen (N), % 0
0 to 0.015
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
0 to 0.8
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0 to 0.15
0