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6023 Aluminum vs. S30600 Stainless Steel

6023 aluminum belongs to the aluminum alloys classification, while S30600 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 S30600 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
190
Elongation at Break, % 11
45
Fatigue Strength, MPa 120 to 130
250
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
76
Shear Strength, MPa 210 to 220
430
Tensile Strength: Ultimate (UTS), MPa 360
610
Tensile Strength: Yield (Proof), MPa 300 to 310
270

Thermal Properties

Latent Heat of Fusion, J/g 400
350
Maximum Temperature: Mechanical, °C 160
950
Melting Completion (Liquidus), °C 640
1380
Melting Onset (Solidus), °C 580
1330
Specific Heat Capacity, J/kg-K 890
490
Thermal Conductivity, W/m-K 170
14
Thermal Expansion, µm/m-K 23
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 45
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 140
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 11
19
Density, g/cm3 2.8
7.6
Embodied Carbon, kg CO2/kg material 8.3
3.6
Embodied Energy, MJ/kg 150
51
Embodied Water, L/kg 1180
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 38 to 39
220
Resilience: Unit (Modulus of Resilience), kJ/m3 670 to 690
190
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 49
25
Strength to Weight: Axial, points 35 to 36
22
Strength to Weight: Bending, points 40
21
Thermal Diffusivity, mm2/s 67
3.7
Thermal Shock Resistance, points 16
14

Alloy Composition

Aluminum (Al), % 94 to 97.7
0
Bismuth (Bi), % 0.3 to 0.8
0
Carbon (C), % 0
0 to 0.018
Chromium (Cr), % 0
17 to 18.5
Copper (Cu), % 0.2 to 0.5
0 to 0.5
Iron (Fe), % 0 to 0.5
58.9 to 65.3
Magnesium (Mg), % 0.4 to 0.9
0
Manganese (Mn), % 0.2 to 0.6
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.2
Nickel (Ni), % 0
14 to 15.5
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0.6 to 1.4
3.7 to 4.3
Sulfur (S), % 0
0 to 0.020
Tin (Sn), % 0.6 to 1.2
0
Residuals, % 0 to 0.15
0