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6066 Aluminum vs. EN 1.4849 Stainless Steel

6066 aluminum belongs to the aluminum alloys classification, while EN 1.4849 stainless steel belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (6, 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 1.4849 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
190
Elongation at Break, % 7.8 to 17
4.5
Fatigue Strength, MPa 94 to 130
120
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
75
Tensile Strength: Ultimate (UTS), MPa 160 to 400
480
Tensile Strength: Yield (Proof), MPa 93 to 360
250

Thermal Properties

Latent Heat of Fusion, J/g 410
320
Maximum Temperature: Mechanical, °C 170
1020
Melting Completion (Liquidus), °C 650
1390
Melting Onset (Solidus), °C 560
1340
Specific Heat Capacity, J/kg-K 890
480
Thermal Conductivity, W/m-K 150
12
Thermal Expansion, µm/m-K 23
15

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
42
Density, g/cm3 2.8
8.0
Embodied Carbon, kg CO2/kg material 8.3
7.1
Embodied Energy, MJ/kg 150
100
Embodied Water, L/kg 1160
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 23 to 52
18
Resilience: Unit (Modulus of Resilience), kJ/m3 61 to 920
160
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 49
24
Strength to Weight: Axial, points 16 to 39
17
Strength to Weight: Bending, points 23 to 43
17
Thermal Diffusivity, mm2/s 61
3.2
Thermal Shock Resistance, points 6.9 to 17
11

Alloy Composition

Aluminum (Al), % 93 to 97
0
Carbon (C), % 0
0.3 to 0.5
Chromium (Cr), % 0 to 0.4
18 to 21
Copper (Cu), % 0.7 to 1.2
0
Iron (Fe), % 0 to 0.5
32.6 to 43.5
Magnesium (Mg), % 0.8 to 1.4
0
Manganese (Mn), % 0.6 to 1.1
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
36 to 39
Niobium (Nb), % 0
1.2 to 1.8
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0.9 to 1.8
1.0 to 2.5
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0 to 0.15
0