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EN 1.4458 Stainless Steel vs. 6065 Aluminum

EN 1.4458 stainless steel belongs to the iron alloys classification, while 6065 aluminum belongs to the aluminum alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, 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 1.4458 stainless steel and the bottom bar is 6065 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
68
Elongation at Break, % 34
4.5 to 11
Fatigue Strength, MPa 150
96 to 110
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 78
26
Tensile Strength: Ultimate (UTS), MPa 510
310 to 400
Tensile Strength: Yield (Proof), MPa 190
270 to 380

Thermal Properties

Latent Heat of Fusion, J/g 300
400
Maximum Temperature: Mechanical, °C 1100
180
Melting Completion (Liquidus), °C 1420
640
Melting Onset (Solidus), °C 1370
590
Specific Heat Capacity, J/kg-K 470
890
Thermal Conductivity, W/m-K 16
170
Thermal Expansion, µm/m-K 15
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
43
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
140

Otherwise Unclassified Properties

Base Metal Price, % relative 30
11
Density, g/cm3 8.0
2.8
Embodied Carbon, kg CO2/kg material 5.4
8.4
Embodied Energy, MJ/kg 75
150
Embodied Water, L/kg 200
1200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
17 to 34
Resilience: Unit (Modulus of Resilience), kJ/m3 89
540 to 1040
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
49
Strength to Weight: Axial, points 17
31 to 40
Strength to Weight: Bending, points 18
36 to 43
Thermal Diffusivity, mm2/s 4.2
67
Thermal Shock Resistance, points 12
14 to 18

Alloy Composition


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Aluminum (Al), % 0
94.4 to 98.2
Bismuth (Bi), % 0
0.5 to 1.5
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 19 to 22
0 to 0.15
Copper (Cu), % 0 to 2.0
0.15 to 0.4
Iron (Fe), % 40.2 to 53
0 to 0.7
Lead (Pb), % 0
0 to 0.050
Magnesium (Mg), % 0
0.8 to 1.2
Manganese (Mn), % 0 to 2.0
0 to 0.15
Molybdenum (Mo), % 2.0 to 2.5
0
Nickel (Ni), % 26 to 30
0
Nitrogen (N), % 0 to 0.2
0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 1.0
0.4 to 0.8
Sulfur (S), % 0 to 0.025
0
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 0
0 to 0.25
Zirconium (Zr), % 0
0 to 0.15
Residuals, % 0
0 to 0.15