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6065 Aluminum vs. EN 1.3960 Stainless Steel

6065 aluminum belongs to the aluminum alloys classification, while EN 1.3960 stainless steel belongs to the iron alloys. There are 29 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 6065 aluminum and the bottom bar is EN 1.3960 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
200
Elongation at Break, % 4.5 to 11
34
Fatigue Strength, MPa 96 to 110
220
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
78
Tensile Strength: Ultimate (UTS), MPa 310 to 400
590
Tensile Strength: Yield (Proof), MPa 270 to 380
270

Thermal Properties

Latent Heat of Fusion, J/g 400
290
Maximum Temperature: Mechanical, °C 180
970
Melting Completion (Liquidus), °C 640
1440
Melting Onset (Solidus), °C 590
1400
Specific Heat Capacity, J/kg-K 890
470
Thermal Conductivity, W/m-K 170
15
Thermal Expansion, µm/m-K 23
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 43
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 140
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 11
21
Density, g/cm3 2.8
7.9
Embodied Carbon, kg CO2/kg material 8.4
4.1
Embodied Energy, MJ/kg 150
57
Embodied Water, L/kg 1200
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 17 to 34
170
Resilience: Unit (Modulus of Resilience), kJ/m3 540 to 1040
190
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 49
25
Strength to Weight: Axial, points 31 to 40
21
Strength to Weight: Bending, points 36 to 43
20
Thermal Diffusivity, mm2/s 67
3.9
Thermal Shock Resistance, points 14 to 18
17

Alloy Composition

Aluminum (Al), % 94.4 to 98.2
0
Bismuth (Bi), % 0.5 to 1.5
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0 to 0.15
16.5 to 18.5
Copper (Cu), % 0.15 to 0.4
0
Iron (Fe), % 0 to 0.7
60.2 to 67.9
Lead (Pb), % 0 to 0.050
0
Magnesium (Mg), % 0.8 to 1.2
0
Manganese (Mn), % 0 to 0.15
0 to 2.0
Molybdenum (Mo), % 0
2.5 to 3.0
Nickel (Ni), % 0
13 to 15
Nitrogen (N), % 0
0.15 to 0.25
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0.4 to 0.8
0 to 1.0
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.25
0
Zirconium (Zr), % 0 to 0.15
0
Residuals, % 0 to 0.15
0