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EN 1.4470 Stainless Steel vs. 6014 Aluminum

EN 1.4470 stainless steel belongs to the iron alloys classification, while 6014 aluminum belongs to the aluminum 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 EN 1.4470 stainless steel and the bottom bar is 6014 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
69
Elongation at Break, % 23
9.1 to 17
Fatigue Strength, MPa 320
43 to 79
Poisson's Ratio 0.27
0.33
Shear Modulus, GPa 80
26
Tensile Strength: Ultimate (UTS), MPa 680
160 to 260
Tensile Strength: Yield (Proof), MPa 480
80 to 200

Thermal Properties

Latent Heat of Fusion, J/g 300
400
Maximum Temperature: Mechanical, °C 1060
180
Melting Completion (Liquidus), °C 1450
640
Melting Onset (Solidus), °C 1400
620
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 18
200
Thermal Expansion, µm/m-K 13
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
53
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
180

Otherwise Unclassified Properties

Base Metal Price, % relative 17
9.5
Density, g/cm3 7.8
2.7
Embodied Carbon, kg CO2/kg material 3.6
8.6
Embodied Energy, MJ/kg 49
160
Embodied Water, L/kg 160
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
22
Resilience: Unit (Modulus of Resilience), kJ/m3 570
46 to 300
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
50
Strength to Weight: Axial, points 24
16 to 26
Strength to Weight: Bending, points 22
24 to 33
Thermal Diffusivity, mm2/s 4.8
83
Thermal Shock Resistance, points 18
7.0 to 11

Alloy Composition

Aluminum (Al), % 0
97.1 to 99.2
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 21 to 23
0 to 0.2
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 63.7 to 71.9
0 to 0.35
Magnesium (Mg), % 0
0.4 to 0.8
Manganese (Mn), % 0 to 2.0
0.050 to 0.2
Molybdenum (Mo), % 2.5 to 3.5
0
Nickel (Ni), % 4.5 to 6.5
0
Nitrogen (N), % 0.12 to 0.2
0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 1.0
0.3 to 0.6
Sulfur (S), % 0 to 0.025
0
Titanium (Ti), % 0
0 to 0.1
Vanadium (V), % 0
0.050 to 0.2
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15