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EN 1.4662 Stainless Steel vs. 6023 Aluminum

EN 1.4662 stainless steel belongs to the iron alloys classification, while 6023 aluminum belongs to the aluminum 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 EN 1.4662 stainless steel and the bottom bar is 6023 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
69
Elongation at Break, % 28
11
Fatigue Strength, MPa 430 to 450
120 to 130
Poisson's Ratio 0.27
0.33
Shear Modulus, GPa 79
26
Shear Strength, MPa 520 to 540
210 to 220
Tensile Strength: Ultimate (UTS), MPa 810 to 830
360
Tensile Strength: Yield (Proof), MPa 580 to 620
300 to 310

Thermal Properties

Latent Heat of Fusion, J/g 290
400
Maximum Temperature: Mechanical, °C 1090
160
Melting Completion (Liquidus), °C 1430
640
Melting Onset (Solidus), °C 1380
580
Specific Heat Capacity, J/kg-K 480
890
Thermal Conductivity, W/m-K 15
170
Thermal Expansion, µm/m-K 13
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
45
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
140

Otherwise Unclassified Properties

Base Metal Price, % relative 16
11
Density, g/cm3 7.7
2.8
Embodied Carbon, kg CO2/kg material 3.2
8.3
Embodied Energy, MJ/kg 45
150
Embodied Water, L/kg 170
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
38 to 39
Resilience: Unit (Modulus of Resilience), kJ/m3 840 to 940
670 to 690
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
49
Strength to Weight: Axial, points 29 to 30
35 to 36
Strength to Weight: Bending, points 25
40
Thermal Diffusivity, mm2/s 3.9
67
Thermal Shock Resistance, points 22
16

Alloy Composition

Aluminum (Al), % 0
94 to 97.7
Bismuth (Bi), % 0
0.3 to 0.8
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 23 to 25
0
Copper (Cu), % 0.1 to 0.8
0.2 to 0.5
Iron (Fe), % 62.6 to 70.2
0 to 0.5
Magnesium (Mg), % 0
0.4 to 0.9
Manganese (Mn), % 2.5 to 4.0
0.2 to 0.6
Molybdenum (Mo), % 1.0 to 2.0
0
Nickel (Ni), % 3.0 to 4.5
0
Nitrogen (N), % 0.2 to 0.3
0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 0.7
0.6 to 1.4
Sulfur (S), % 0 to 0.0050
0
Tin (Sn), % 0
0.6 to 1.2
Residuals, % 0
0 to 0.15