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AISI 329 Stainless Steel vs. 6110A Aluminum

AISI 329 stainless steel belongs to the iron alloys classification, while 6110A aluminum belongs to the aluminum alloys. There are 30 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 AISI 329 stainless steel and the bottom bar is 6110A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
70
Elongation at Break, % 17
11 to 18
Fatigue Strength, MPa 330
140 to 210
Poisson's Ratio 0.27
0.33
Shear Modulus, GPa 80
26
Shear Strength, MPa 440
220 to 280
Tensile Strength: Ultimate (UTS), MPa 710
360 to 470
Tensile Strength: Yield (Proof), MPa 540
250 to 430

Thermal Properties

Latent Heat of Fusion, J/g 300
410
Maximum Temperature: Mechanical, °C 1100
190
Melting Completion (Liquidus), °C 1440
650
Melting Onset (Solidus), °C 1390
600
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 16
160
Thermal Expansion, µm/m-K 13
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
42
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
140

Otherwise Unclassified Properties

Base Metal Price, % relative 16
9.5
Density, g/cm3 7.7
2.8
Embodied Carbon, kg CO2/kg material 3.1
8.4
Embodied Energy, MJ/kg 44
150
Embodied Water, L/kg 170
1170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
47 to 58
Resilience: Unit (Modulus of Resilience), kJ/m3 730
450 to 1300
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
50
Strength to Weight: Axial, points 25
36 to 47
Strength to Weight: Bending, points 23
41 to 48
Thermal Diffusivity, mm2/s 4.3
65
Thermal Shock Resistance, points 19
16 to 21

Alloy Composition

Aluminum (Al), % 0
94.8 to 98
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 23 to 28
0.050 to 0.25
Copper (Cu), % 0
0.3 to 0.8
Iron (Fe), % 63.1 to 74
0 to 0.5
Magnesium (Mg), % 0
0.7 to 1.1
Manganese (Mn), % 0 to 1.0
0.3 to 0.9
Molybdenum (Mo), % 1.0 to 2.0
0
Nickel (Ni), % 2.0 to 5.0
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.75
0.7 to 1.1
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0
0 to 0.2
Zirconium (Zr), % 0
0 to 0.2
Residuals, % 0
0 to 0.15