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AISI 304N Stainless Steel vs. A380.0 Aluminum

AISI 304N 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 (3, 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 304N stainless steel and the bottom bar is A380.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 360
80
Elastic (Young's, Tensile) Modulus, GPa 200
73
Elongation at Break, % 9.1 to 45
3.3
Fatigue Strength, MPa 220 to 440
140
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
27
Shear Strength, MPa 420 to 700
190
Tensile Strength: Ultimate (UTS), MPa 620 to 1180
290
Tensile Strength: Yield (Proof), MPa 270 to 850
160

Thermal Properties

Latent Heat of Fusion, J/g 290
510
Maximum Temperature: Mechanical, °C 960
170
Melting Completion (Liquidus), °C 1420
590
Melting Onset (Solidus), °C 1380
550
Specific Heat Capacity, J/kg-K 480
870
Thermal Conductivity, W/m-K 16
96
Thermal Expansion, µm/m-K 16
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
25
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
78

Otherwise Unclassified Properties

Base Metal Price, % relative 15
11
Density, g/cm3 7.8
2.9
Embodied Carbon, kg CO2/kg material 3.0
7.5
Embodied Energy, MJ/kg 43
140
Embodied Water, L/kg 150
1040

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 280
8.3
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 1830
180
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
48
Strength to Weight: Axial, points 22 to 42
28
Strength to Weight: Bending, points 21 to 32
34
Thermal Diffusivity, mm2/s 4.2
38
Thermal Shock Resistance, points 14 to 26
13

Alloy Composition

Aluminum (Al), % 0
80.3 to 89.5
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 18 to 20
0
Copper (Cu), % 0
3.0 to 4.0
Iron (Fe), % 66.4 to 73.9
0 to 1.3
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 0 to 2.0
0 to 0.5
Nickel (Ni), % 8.0 to 10.5
0 to 0.5
Nitrogen (N), % 0.1 to 0.16
0
Phosphorus (P), % 0 to 0.045
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