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6106 Aluminum vs. EN 1.4017 Stainless Steel

6106 aluminum belongs to the aluminum alloys classification, while EN 1.4017 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 6106 aluminum and the bottom bar is EN 1.4017 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
200
Elongation at Break, % 9.1
14
Fatigue Strength, MPa 88
220
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
77
Shear Strength, MPa 170
350
Tensile Strength: Ultimate (UTS), MPa 290
580
Tensile Strength: Yield (Proof), MPa 220
390

Thermal Properties

Latent Heat of Fusion, J/g 400
280
Maximum Temperature: Mechanical, °C 160
870
Melting Completion (Liquidus), °C 660
1440
Melting Onset (Solidus), °C 610
1390
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 190
30
Thermal Expansion, µm/m-K 23
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 49
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 160
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.5
Density, g/cm3 2.7
7.7
Embodied Carbon, kg CO2/kg material 8.3
2.2
Embodied Energy, MJ/kg 150
31
Embodied Water, L/kg 1190
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24
71
Resilience: Unit (Modulus of Resilience), kJ/m3 370
380
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 29
21
Strength to Weight: Bending, points 35
20
Thermal Diffusivity, mm2/s 78
8.1
Thermal Shock Resistance, points 13
20

Alloy Composition

Aluminum (Al), % 97.2 to 99.3
0
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0 to 0.2
16 to 18
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 0 to 0.35
78.3 to 82.8
Magnesium (Mg), % 0.4 to 0.8
0
Manganese (Mn), % 0.050 to 0.2
0 to 1.0
Nickel (Ni), % 0
1.2 to 1.6
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0.3 to 0.6
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.15
0
Residuals, % 0 to 0.15
0