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6106 Aluminum vs. EN 1.4650 Stainless Steel

6106 aluminum belongs to the aluminum alloys classification, while EN 1.4650 stainless steel belongs to the iron 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 6106 aluminum and the bottom bar is EN 1.4650 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
200
Elongation at Break, % 9.1
48
Fatigue Strength, MPa 88
230
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
77
Shear Strength, MPa 170
440
Tensile Strength: Ultimate (UTS), MPa 290
620
Tensile Strength: Yield (Proof), MPa 220
240

Thermal Properties

Latent Heat of Fusion, J/g 400
290
Maximum Temperature: Mechanical, °C 160
970
Melting Completion (Liquidus), °C 660
1420
Melting Onset (Solidus), °C 610
1380
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 190
15
Thermal Expansion, µm/m-K 23
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 49
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 160
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
16
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 8.3
3.1
Embodied Energy, MJ/kg 150
43
Embodied Water, L/kg 1190
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24
240
Resilience: Unit (Modulus of Resilience), kJ/m3 370
150
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 29
22
Strength to Weight: Bending, points 35
21
Thermal Diffusivity, mm2/s 78
4.1
Thermal Shock Resistance, points 13
14

Alloy Composition

Aluminum (Al), % 97.2 to 99.3
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0 to 0.2
18.5 to 20
Copper (Cu), % 0 to 0.25
0 to 1.0
Iron (Fe), % 0 to 0.35
65.8 to 72.5
Magnesium (Mg), % 0.4 to 0.8
0
Manganese (Mn), % 0.050 to 0.2
0 to 2.0
Nickel (Ni), % 0
9.0 to 10
Nitrogen (N), % 0
0 to 0.080
Phosphorus (P), % 0
0 to 0.045
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