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6066 Aluminum vs. EN 1.4513 Stainless Steel

6066 aluminum belongs to the aluminum alloys classification, while EN 1.4513 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 6066 aluminum and the bottom bar is EN 1.4513 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
200
Elongation at Break, % 7.8 to 17
26
Fatigue Strength, MPa 94 to 130
170
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
77
Shear Strength, MPa 95 to 240
310
Tensile Strength: Ultimate (UTS), MPa 160 to 400
480
Tensile Strength: Yield (Proof), MPa 93 to 360
240

Thermal Properties

Latent Heat of Fusion, J/g 410
280
Maximum Temperature: Mechanical, °C 170
880
Melting Completion (Liquidus), °C 650
1450
Melting Onset (Solidus), °C 560
1410
Specific Heat Capacity, J/kg-K 890
480
Thermal Conductivity, W/m-K 150
25
Thermal Expansion, µm/m-K 23
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 130
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
10
Density, g/cm3 2.8
7.7
Embodied Carbon, kg CO2/kg material 8.3
2.5
Embodied Energy, MJ/kg 150
35
Embodied Water, L/kg 1160
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 23 to 52
100
Resilience: Unit (Modulus of Resilience), kJ/m3 61 to 920
150
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 49
25
Strength to Weight: Axial, points 16 to 39
17
Strength to Weight: Bending, points 23 to 43
18
Thermal Diffusivity, mm2/s 61
6.8
Thermal Shock Resistance, points 6.9 to 17
17

Alloy Composition

Aluminum (Al), % 93 to 97
0
Carbon (C), % 0
0 to 0.025
Chromium (Cr), % 0 to 0.4
16 to 18
Copper (Cu), % 0.7 to 1.2
0
Iron (Fe), % 0 to 0.5
77.7 to 83.1
Magnesium (Mg), % 0.8 to 1.4
0
Manganese (Mn), % 0.6 to 1.1
0 to 1.0
Molybdenum (Mo), % 0
0.8 to 1.4
Nitrogen (N), % 0
0 to 0.020
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0.9 to 1.8
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0 to 0.2
0.15 to 0.8
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0 to 0.15
0