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EN 1.4517 Stainless Steel vs. 6025 Aluminum

EN 1.4517 stainless steel belongs to the iron alloys classification, while 6025 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 1.4517 stainless steel and the bottom bar is 6025 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
70
Elongation at Break, % 25
2.8 to 10
Fatigue Strength, MPa 380
67 to 110
Poisson's Ratio 0.27
0.33
Shear Modulus, GPa 79
26
Tensile Strength: Ultimate (UTS), MPa 730
190 to 240
Tensile Strength: Yield (Proof), MPa 550
68 to 210

Thermal Properties

Latent Heat of Fusion, J/g 300
410
Maximum Temperature: Mechanical, °C 1100
160
Melting Completion (Liquidus), °C 1430
650
Melting Onset (Solidus), °C 1390
550
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 17
130
Thermal Expansion, µm/m-K 13
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
33
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
110

Otherwise Unclassified Properties

Base Metal Price, % relative 20
9.5
Density, g/cm3 7.8
2.8
Embodied Carbon, kg CO2/kg material 3.8
8.5
Embodied Energy, MJ/kg 53
150
Embodied Water, L/kg 180
1160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
6.0 to 15
Resilience: Unit (Modulus of Resilience), kJ/m3 740
33 to 310
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
50
Strength to Weight: Axial, points 26
19 to 24
Strength to Weight: Bending, points 23
26 to 31
Thermal Diffusivity, mm2/s 4.6
54
Thermal Shock Resistance, points 20
8.2 to 10

Alloy Composition

Aluminum (Al), % 0
91.7 to 96.3
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 24.5 to 26.5
0 to 0.2
Copper (Cu), % 2.8 to 3.5
0.2 to 0.7
Iron (Fe), % 56.7 to 65.1
0 to 0.7
Magnesium (Mg), % 0
2.1 to 3.0
Manganese (Mn), % 0 to 1.5
0.6 to 1.4
Molybdenum (Mo), % 2.5 to 3.5
0
Nickel (Ni), % 5.0 to 7.0
0
Nitrogen (N), % 0.12 to 0.22
0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 1.0
0.8 to 1.5
Sulfur (S), % 0 to 0.025
0
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0
0 to 0.5
Residuals, % 0
0 to 0.15