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6023 Aluminum vs. EN 1.4662 Stainless Steel

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

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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