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AISI 316 Stainless Steel vs. 5026 Aluminum

AISI 316 stainless steel belongs to the iron alloys classification, while 5026 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (6, 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 AISI 316 stainless steel and the bottom bar is 5026 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
70
Elongation at Break, % 8.0 to 55
5.1 to 11
Fatigue Strength, MPa 210 to 430
94 to 140
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 78
26
Shear Strength, MPa 350 to 690
150 to 180
Tensile Strength: Ultimate (UTS), MPa 520 to 1180
260 to 320
Tensile Strength: Yield (Proof), MPa 230 to 850
120 to 250

Thermal Properties

Latent Heat of Fusion, J/g 290
400
Maximum Temperature: Mechanical, °C 590
210
Melting Completion (Liquidus), °C 1400
650
Melting Onset (Solidus), °C 1380
510
Specific Heat Capacity, J/kg-K 470
890
Thermal Conductivity, W/m-K 15
130
Thermal Expansion, µm/m-K 16
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
31
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
99

Otherwise Unclassified Properties

Base Metal Price, % relative 19
9.5
Density, g/cm3 7.9
2.8
Embodied Carbon, kg CO2/kg material 3.9
8.9
Embodied Energy, MJ/kg 53
150
Embodied Water, L/kg 150
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 85 to 260
15 to 29
Resilience: Unit (Modulus of Resilience), kJ/m3 130 to 1820
100 to 440
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
49
Strength to Weight: Axial, points 18 to 41
26 to 32
Strength to Weight: Bending, points 18 to 31
33 to 37
Thermal Diffusivity, mm2/s 4.1
52
Thermal Shock Resistance, points 11 to 26
11 to 14

Alloy Composition

Aluminum (Al), % 0
88.2 to 94.7
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 16 to 18
0 to 0.3
Copper (Cu), % 0
0.1 to 0.8
Iron (Fe), % 62 to 72
0.2 to 1.0
Magnesium (Mg), % 0
3.9 to 4.9
Manganese (Mn), % 0 to 2.0
0.6 to 1.8
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 10 to 14
0
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 0.75
0.55 to 1.4
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0
0 to 1.0
Zirconium (Zr), % 0
0 to 0.3
Residuals, % 0
0 to 0.15

Comparable Variants