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6023 Aluminum vs. EN 1.4477 Stainless Steel

6023 aluminum belongs to the aluminum alloys classification, while EN 1.4477 stainless steel belongs to the iron alloys. There are 30 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 6023 aluminum and the bottom bar is EN 1.4477 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
210
Elongation at Break, % 11
22 to 23
Fatigue Strength, MPa 120 to 130
420 to 490
Poisson's Ratio 0.33
0.27
Shear Modulus, GPa 26
81
Shear Strength, MPa 210 to 220
550 to 580
Tensile Strength: Ultimate (UTS), MPa 360
880 to 930
Tensile Strength: Yield (Proof), MPa 300 to 310
620 to 730

Thermal Properties

Latent Heat of Fusion, J/g 400
300
Maximum Temperature: Mechanical, °C 160
1100
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
13
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
20
Density, g/cm3 2.8
7.7
Embodied Carbon, kg CO2/kg material 8.3
3.7
Embodied Energy, MJ/kg 150
52
Embodied Water, L/kg 1180
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 38 to 39
180 to 190
Resilience: Unit (Modulus of Resilience), kJ/m3 670 to 690
940 to 1290
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 49
25
Strength to Weight: Axial, points 35 to 36
31 to 33
Strength to Weight: Bending, points 40
26 to 27
Thermal Diffusivity, mm2/s 67
3.5
Thermal Shock Resistance, points 16
23 to 25

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
28 to 30
Copper (Cu), % 0.2 to 0.5
0 to 0.8
Iron (Fe), % 0 to 0.5
56.6 to 63.6
Magnesium (Mg), % 0.4 to 0.9
0
Manganese (Mn), % 0.2 to 0.6
0.8 to 1.5
Molybdenum (Mo), % 0
1.5 to 2.6
Nickel (Ni), % 0
5.8 to 7.5
Nitrogen (N), % 0
0.3 to 0.4
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0.6 to 1.4
0 to 0.5
Sulfur (S), % 0
0 to 0.015
Tin (Sn), % 0.6 to 1.2
0
Residuals, % 0 to 0.15
0