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N08810 Stainless Steel vs. 2025 Aluminum

N08810 stainless steel belongs to the iron alloys classification, while 2025 aluminum belongs to the aluminum alloys. There are 30 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 N08810 stainless steel and the bottom bar is 2025 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
72
Elongation at Break, % 33
15
Fatigue Strength, MPa 160
130
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
27
Shear Strength, MPa 340
240
Tensile Strength: Ultimate (UTS), MPa 520
400
Tensile Strength: Yield (Proof), MPa 200
260

Thermal Properties

Latent Heat of Fusion, J/g 300
400
Maximum Temperature: Mechanical, °C 1100
190
Melting Completion (Liquidus), °C 1400
640
Melting Onset (Solidus), °C 1350
520
Specific Heat Capacity, J/kg-K 480
870
Thermal Conductivity, W/m-K 12
150
Thermal Expansion, µm/m-K 14
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
40
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
120

Otherwise Unclassified Properties

Base Metal Price, % relative 30
10
Density, g/cm3 8.0
3.0
Embodied Carbon, kg CO2/kg material 5.3
7.9
Embodied Energy, MJ/kg 76
150
Embodied Water, L/kg 200
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
55
Resilience: Unit (Modulus of Resilience), kJ/m3 100
450
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
46
Strength to Weight: Axial, points 18
37
Strength to Weight: Bending, points 18
40
Thermal Diffusivity, mm2/s 3.0
58
Thermal Shock Resistance, points 13
18

Alloy Composition

Aluminum (Al), % 0.15 to 0.6
90.9 to 95.2
Carbon (C), % 0.050 to 0.1
0
Chromium (Cr), % 19 to 23
0 to 0.1
Copper (Cu), % 0 to 0.75
3.9 to 5.0
Iron (Fe), % 39.5 to 50.7
0 to 1.0
Magnesium (Mg), % 0
0 to 0.050
Manganese (Mn), % 0 to 1.5
0.4 to 1.2
Nickel (Ni), % 30 to 35
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 1.0
0.5 to 1.2
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0.15 to 0.6
0 to 0.15
Zinc (Zn), % 0
0 to 0.25
Residuals, % 0
0 to 0.15