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AISI 329 Stainless Steel vs. EN AC-48000 Aluminum

AISI 329 stainless steel belongs to the iron alloys classification, while EN AC-48000 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 EN AC-48000 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 240
100 to 110
Elastic (Young's, Tensile) Modulus, GPa 200
73
Elongation at Break, % 17
1.0
Fatigue Strength, MPa 330
85 to 86
Poisson's Ratio 0.27
0.33
Shear Modulus, GPa 80
28
Tensile Strength: Ultimate (UTS), MPa 710
220 to 310
Tensile Strength: Yield (Proof), MPa 540
210 to 270

Thermal Properties

Latent Heat of Fusion, J/g 300
570
Maximum Temperature: Mechanical, °C 1100
190
Melting Completion (Liquidus), °C 1440
600
Melting Onset (Solidus), °C 1390
560
Specific Heat Capacity, J/kg-K 480
890
Thermal Conductivity, W/m-K 16
130
Thermal Expansion, µm/m-K 13
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
33
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
110

Otherwise Unclassified Properties

Base Metal Price, % relative 16
10
Density, g/cm3 7.7
2.7
Embodied Carbon, kg CO2/kg material 3.1
7.9
Embodied Energy, MJ/kg 44
140
Embodied Water, L/kg 170
1030

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
2.2 to 3.0
Resilience: Unit (Modulus of Resilience), kJ/m3 730
300 to 510
Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 25
53
Strength to Weight: Axial, points 25
23 to 33
Strength to Weight: Bending, points 23
31 to 39
Thermal Diffusivity, mm2/s 4.3
54
Thermal Shock Resistance, points 19
10 to 15

Alloy Composition

Aluminum (Al), % 0
80.4 to 87.2
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 23 to 28
0
Copper (Cu), % 0
0.8 to 1.5
Iron (Fe), % 63.1 to 74
0 to 0.7
Magnesium (Mg), % 0
0.8 to 1.5
Manganese (Mn), % 0 to 1.0
0 to 0.35
Molybdenum (Mo), % 1.0 to 2.0
0
Nickel (Ni), % 2.0 to 5.0
0.7 to 1.3
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.75
10.5 to 13.5
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 0.35
Residuals, % 0
0 to 0.15