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AISI 329 Stainless Steel vs. EN AC-44200 Aluminum

AISI 329 stainless steel belongs to the iron alloys classification, while EN AC-44200 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-44200 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 240
60
Elastic (Young's, Tensile) Modulus, GPa 200
72
Elongation at Break, % 17
6.2
Fatigue Strength, MPa 330
63
Poisson's Ratio 0.27
0.33
Shear Modulus, GPa 80
27
Tensile Strength: Ultimate (UTS), MPa 710
180
Tensile Strength: Yield (Proof), MPa 540
86

Thermal Properties

Latent Heat of Fusion, J/g 300
570
Maximum Temperature: Mechanical, °C 1100
170
Melting Completion (Liquidus), °C 1440
590
Melting Onset (Solidus), °C 1390
580
Specific Heat Capacity, J/kg-K 480
910
Thermal Conductivity, W/m-K 16
130
Thermal Expansion, µm/m-K 13
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
35
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
130

Otherwise Unclassified Properties

Base Metal Price, % relative 16
9.5
Density, g/cm3 7.7
2.5
Embodied Carbon, kg CO2/kg material 3.1
7.7
Embodied Energy, MJ/kg 44
140
Embodied Water, L/kg 170
1050

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
9.1
Resilience: Unit (Modulus of Resilience), kJ/m3 730
51
Stiffness to Weight: Axial, points 15
16
Stiffness to Weight: Bending, points 25
55
Strength to Weight: Axial, points 25
20
Strength to Weight: Bending, points 23
28
Thermal Diffusivity, mm2/s 4.3
59
Thermal Shock Resistance, points 19
8.4

Alloy Composition

Aluminum (Al), % 0
85.2 to 89.5
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 23 to 28
0
Copper (Cu), % 0
0 to 0.050
Iron (Fe), % 63.1 to 74
0 to 0.55
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
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 0.15
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15