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N08811 Stainless Steel vs. 8176 Aluminum

N08811 stainless steel belongs to the iron alloys classification, while 8176 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 N08811 stainless steel and the bottom bar is 8176 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
69
Elongation at Break, % 33
15
Fatigue Strength, MPa 150
59
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
26
Shear Strength, MPa 340
70
Tensile Strength: Ultimate (UTS), MPa 510
160
Tensile Strength: Yield (Proof), MPa 190
95

Thermal Properties

Latent Heat of Fusion, J/g 300
400
Maximum Temperature: Mechanical, °C 1100
170
Melting Completion (Liquidus), °C 1390
660
Melting Onset (Solidus), °C 1360
650
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 12
230
Thermal Expansion, µm/m-K 14
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
61
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
200

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
8.2
Embodied Energy, MJ/kg 76
150
Embodied Water, L/kg 200
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
21
Resilience: Unit (Modulus of Resilience), kJ/m3 94
66
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
50
Strength to Weight: Axial, points 18
16
Strength to Weight: Bending, points 18
24
Thermal Diffusivity, mm2/s 3.0
93
Thermal Shock Resistance, points 13
7.0

Alloy Composition

Aluminum (Al), % 0.15 to 0.6
98.6 to 99.6
Carbon (C), % 0.060 to 0.1
0
Chromium (Cr), % 19 to 23
0
Copper (Cu), % 0 to 0.75
0
Gallium (Ga), % 0
0 to 0.030
Iron (Fe), % 39.5 to 50.6
0.4 to 1.0
Manganese (Mn), % 0 to 1.5
0
Nickel (Ni), % 30 to 35
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0.030 to 0.15
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0.15 to 0.6
0
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15