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6008 Aluminum vs. N08801 Stainless Steel

6008 aluminum belongs to the aluminum alloys classification, while N08801 stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, 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 6008 aluminum and the bottom bar is N08801 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
200
Elongation at Break, % 9.1 to 17
34
Fatigue Strength, MPa 55 to 88
260
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
77
Shear Strength, MPa 120 to 170
570
Tensile Strength: Ultimate (UTS), MPa 200 to 290
860
Tensile Strength: Yield (Proof), MPa 100 to 220
190

Thermal Properties

Latent Heat of Fusion, J/g 410
300
Maximum Temperature: Mechanical, °C 180
1090
Melting Completion (Liquidus), °C 640
1390
Melting Onset (Solidus), °C 620
1360
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 190
12
Thermal Expansion, µm/m-K 23
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 49
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 160
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
30
Density, g/cm3 2.7
8.0
Embodied Carbon, kg CO2/kg material 8.5
5.5
Embodied Energy, MJ/kg 160
79
Embodied Water, L/kg 1180
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 28
220
Resilience: Unit (Modulus of Resilience), kJ/m3 76 to 360
92
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 21 to 29
30
Strength to Weight: Bending, points 28 to 35
25
Thermal Diffusivity, mm2/s 77
3.3
Thermal Shock Resistance, points 9.0 to 13
20

Alloy Composition

Aluminum (Al), % 96.5 to 99.1
0
Carbon (C), % 0
0 to 0.1
Chromium (Cr), % 0 to 0.3
19 to 22
Copper (Cu), % 0 to 0.3
0 to 0.5
Iron (Fe), % 0 to 0.35
39.5 to 50.3
Magnesium (Mg), % 0.4 to 0.7
0
Manganese (Mn), % 0 to 0.3
0 to 1.5
Nickel (Ni), % 0
30 to 34
Silicon (Si), % 0.5 to 0.9
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0 to 0.1
0.75 to 1.5
Vanadium (V), % 0.050 to 0.2
0
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.15
0