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AISI 329 Stainless Steel vs. A380.0 Aluminum

AISI 329 stainless steel belongs to the iron alloys classification, while A380.0 aluminum belongs to the aluminum 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 AISI 329 stainless steel and the bottom bar is A380.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 240
80
Elastic (Young's, Tensile) Modulus, GPa 200
73
Elongation at Break, % 17
3.3
Fatigue Strength, MPa 330
140
Poisson's Ratio 0.27
0.33
Shear Modulus, GPa 80
27
Shear Strength, MPa 440
190
Tensile Strength: Ultimate (UTS), MPa 710
290
Tensile Strength: Yield (Proof), MPa 540
160

Thermal Properties

Latent Heat of Fusion, J/g 300
510
Maximum Temperature: Mechanical, °C 1100
170
Melting Completion (Liquidus), °C 1440
590
Melting Onset (Solidus), °C 1390
550
Specific Heat Capacity, J/kg-K 480
870
Thermal Conductivity, W/m-K 16
96
Thermal Expansion, µm/m-K 13
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
25
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
78

Otherwise Unclassified Properties

Base Metal Price, % relative 16
11
Density, g/cm3 7.7
2.9
Embodied Carbon, kg CO2/kg material 3.1
7.5
Embodied Energy, MJ/kg 44
140
Embodied Water, L/kg 170
1040

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
8.3
Resilience: Unit (Modulus of Resilience), kJ/m3 730
180
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
48
Strength to Weight: Axial, points 25
28
Strength to Weight: Bending, points 23
34
Thermal Diffusivity, mm2/s 4.3
38
Thermal Shock Resistance, points 19
13

Alloy Composition

Aluminum (Al), % 0
80.3 to 89.5
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 23 to 28
0
Copper (Cu), % 0
3.0 to 4.0
Iron (Fe), % 63.1 to 74
0 to 1.3
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 0 to 1.0
0 to 0.5
Molybdenum (Mo), % 1.0 to 2.0
0
Nickel (Ni), % 2.0 to 5.0
0 to 0.5
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.75
7.5 to 9.5
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0 to 0.35
Zinc (Zn), % 0
0 to 3.0
Residuals, % 0
0 to 0.5