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N08926 Stainless Steel vs. B390.0 Aluminum

N08926 stainless steel belongs to the iron alloys classification, while B390.0 aluminum belongs to the aluminum alloys. There are 29 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 N08926 stainless steel and the bottom bar is B390.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
76
Elongation at Break, % 40
0.88
Fatigue Strength, MPa 290
170
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 80
29
Tensile Strength: Ultimate (UTS), MPa 740
320
Tensile Strength: Yield (Proof), MPa 330
250

Thermal Properties

Latent Heat of Fusion, J/g 300
640
Maximum Temperature: Mechanical, °C 1100
170
Melting Completion (Liquidus), °C 1460
580
Melting Onset (Solidus), °C 1410
580
Specific Heat Capacity, J/kg-K 460
880
Thermal Conductivity, W/m-K 12
130
Thermal Expansion, µm/m-K 16
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
27
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
88

Otherwise Unclassified Properties

Base Metal Price, % relative 33
11
Density, g/cm3 8.1
2.8
Embodied Carbon, kg CO2/kg material 6.2
7.3
Embodied Energy, MJ/kg 84
130
Embodied Water, L/kg 200
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
2.6
Resilience: Unit (Modulus of Resilience), kJ/m3 270
410
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 24
51
Strength to Weight: Axial, points 25
32
Strength to Weight: Bending, points 22
38
Thermal Diffusivity, mm2/s 3.2
55
Thermal Shock Resistance, points 16
15

Alloy Composition

Aluminum (Al), % 0
72.7 to 79.6
Carbon (C), % 0 to 0.020
0
Chromium (Cr), % 19 to 21
0
Copper (Cu), % 0.5 to 1.5
4.0 to 5.0
Iron (Fe), % 41.7 to 50.4
0 to 1.3
Magnesium (Mg), % 0
0.45 to 0.65
Manganese (Mn), % 0 to 2.0
0 to 0.5
Molybdenum (Mo), % 6.0 to 7.0
0
Nickel (Ni), % 24 to 26
0 to 0.1
Nitrogen (N), % 0.15 to 0.25
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.5
16 to 18
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 0
0 to 1.5
Residuals, % 0
0 to 0.2