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N08810 Stainless Steel vs. B443.0 Aluminum

N08810 stainless steel belongs to the iron alloys classification, while B443.0 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 N08810 stainless steel and the bottom bar is B443.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
70
Elongation at Break, % 33
4.9
Fatigue Strength, MPa 160
55
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
26
Shear Strength, MPa 340
110
Tensile Strength: Ultimate (UTS), MPa 520
150
Tensile Strength: Yield (Proof), MPa 200
50

Thermal Properties

Latent Heat of Fusion, J/g 300
470
Maximum Temperature: Mechanical, °C 1100
170
Melting Completion (Liquidus), °C 1400
620
Melting Onset (Solidus), °C 1350
600
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 12
150
Thermal Expansion, µm/m-K 14
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
38
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
130

Otherwise Unclassified Properties

Base Metal Price, % relative 30
9.5
Density, g/cm3 8.0
2.7
Embodied Carbon, kg CO2/kg material 5.3
8.0
Embodied Energy, MJ/kg 76
150
Embodied Water, L/kg 200
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
5.6
Resilience: Unit (Modulus of Resilience), kJ/m3 100
18
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 24
52
Strength to Weight: Axial, points 18
15
Strength to Weight: Bending, points 18
23
Thermal Diffusivity, mm2/s 3.0
61
Thermal Shock Resistance, points 13
6.8

Alloy Composition

Aluminum (Al), % 0.15 to 0.6
91.9 to 95.5
Carbon (C), % 0.050 to 0.1
0
Chromium (Cr), % 19 to 23
0
Copper (Cu), % 0 to 0.75
0 to 0.15
Iron (Fe), % 39.5 to 50.7
0 to 0.8
Magnesium (Mg), % 0
0 to 0.050
Manganese (Mn), % 0 to 1.5
0 to 0.35
Nickel (Ni), % 30 to 35
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 1.0
4.5 to 6.0
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0.15 to 0.6
0 to 0.25
Zinc (Zn), % 0
0 to 0.35
Residuals, % 0
0 to 0.15