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6008 Aluminum vs. S17600 Stainless Steel

6008 aluminum belongs to the aluminum alloys classification, while S17600 stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (5, 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 S17600 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
200
Elongation at Break, % 9.1 to 17
8.6 to 11
Fatigue Strength, MPa 55 to 88
300 to 680
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
76
Shear Strength, MPa 120 to 170
560 to 880
Tensile Strength: Ultimate (UTS), MPa 200 to 290
940 to 1490
Tensile Strength: Yield (Proof), MPa 100 to 220
580 to 1310

Thermal Properties

Latent Heat of Fusion, J/g 410
290
Maximum Temperature: Mechanical, °C 180
890
Melting Completion (Liquidus), °C 640
1430
Melting Onset (Solidus), °C 620
1390
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 190
15
Thermal Expansion, µm/m-K 23
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 49
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 160
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
13
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 8.5
2.9
Embodied Energy, MJ/kg 160
42
Embodied Water, L/kg 1180
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 28
70 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 76 to 360
850 to 4390
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 21 to 29
34 to 54
Strength to Weight: Bending, points 28 to 35
28 to 37
Thermal Diffusivity, mm2/s 77
4.1
Thermal Shock Resistance, points 9.0 to 13
31 to 50

Alloy Composition

Aluminum (Al), % 96.5 to 99.1
0 to 0.4
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0 to 0.3
16 to 17.5
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 0 to 0.35
71.3 to 77.6
Magnesium (Mg), % 0.4 to 0.7
0
Manganese (Mn), % 0 to 0.3
0 to 1.0
Nickel (Ni), % 0
6.0 to 7.5
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0.5 to 0.9
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.1
0.4 to 1.2
Vanadium (V), % 0.050 to 0.2
0
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.15
0