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5083-O Aluminum vs. Annealed S17700 Stainless Steel

5083-O aluminum belongs to the aluminum alloys classification, while annealed S17700 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-O aluminum and the bottom bar is annealed S17700 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 75
180
Elastic (Young's, Tensile) Modulus, GPa 68
200
Elongation at Break, % 17
23
Fatigue Strength, MPa 150
290
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
76
Shear Strength, MPa 170
750
Tensile Strength: Ultimate (UTS), MPa 300
1180
Tensile Strength: Yield (Proof), MPa 140
430

Thermal Properties

Latent Heat of Fusion, J/g 400
290
Maximum Temperature: Corrosion, °C 65
410
Maximum Temperature: Mechanical, °C 190
890
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
15
Thermal Expansion, µm/m-K 24
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 29
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 96
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
13
Density, g/cm3 2.7
7.7
Embodied Carbon, kg CO2/kg material 8.9
2.8
Embodied Energy, MJ/kg 150
40
Embodied Water, L/kg 1170
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 42
210
Resilience: Unit (Modulus of Resilience), kJ/m3 140
460
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 31
42
Strength to Weight: Bending, points 37
32
Thermal Diffusivity, mm2/s 48
4.1
Thermal Shock Resistance, points 13
39

Alloy Composition

Aluminum (Al), % 92.4 to 95.6
0.75 to 1.5
Carbon (C), % 0
0 to 0.090
Chromium (Cr), % 0.050 to 0.25
16 to 18
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0 to 0.4
70.5 to 76.8
Magnesium (Mg), % 4.0 to 4.9
0
Manganese (Mn), % 0.4 to 1.0
0 to 1.0
Nickel (Ni), % 0
6.5 to 7.8
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
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0 to 0.15
0