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6023 Aluminum vs. EN 1.0303 Steel

6023 aluminum belongs to the aluminum alloys classification, while EN 1.0303 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 1.0303 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
190
Elongation at Break, % 11
12 to 25
Fatigue Strength, MPa 120 to 130
150 to 230
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
73
Shear Strength, MPa 210 to 220
220 to 260
Tensile Strength: Ultimate (UTS), MPa 360
290 to 410
Tensile Strength: Yield (Proof), MPa 300 to 310
200 to 320

Thermal Properties

Latent Heat of Fusion, J/g 400
250
Maximum Temperature: Mechanical, °C 160
400
Melting Completion (Liquidus), °C 640
1470
Melting Onset (Solidus), °C 580
1430
Specific Heat Capacity, J/kg-K 890
470
Thermal Conductivity, W/m-K 170
53
Thermal Expansion, µm/m-K 23
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 45
6.9
Electrical Conductivity: Equal Weight (Specific), % IACS 140
7.9

Otherwise Unclassified Properties

Base Metal Price, % relative 11
1.8
Density, g/cm3 2.8
7.9
Embodied Carbon, kg CO2/kg material 8.3
1.4
Embodied Energy, MJ/kg 150
18
Embodied Water, L/kg 1180
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 38 to 39
30 to 94
Resilience: Unit (Modulus of Resilience), kJ/m3 670 to 690
110 to 270
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 49
24
Strength to Weight: Axial, points 35 to 36
10 to 15
Strength to Weight: Bending, points 40
12 to 16
Thermal Diffusivity, mm2/s 67
14
Thermal Shock Resistance, points 16
9.2 to 13

Alloy Composition

Aluminum (Al), % 94 to 97.7
0.020 to 0.060
Bismuth (Bi), % 0.3 to 0.8
0
Carbon (C), % 0
0.020 to 0.060
Copper (Cu), % 0.2 to 0.5
0
Iron (Fe), % 0 to 0.5
99.335 to 99.71
Magnesium (Mg), % 0.4 to 0.9
0
Manganese (Mn), % 0.2 to 0.6
0.25 to 0.4
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0.6 to 1.4
0 to 0.1
Sulfur (S), % 0
0 to 0.025
Tin (Sn), % 0.6 to 1.2
0
Residuals, % 0 to 0.15
0