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6063 Aluminum vs. EN 1.7243 Steel

6063 aluminum belongs to the aluminum alloys classification, while EN 1.7243 steel belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (7, 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 6063 aluminum and the bottom bar is EN 1.7243 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 25 to 95
150 to 170
Elastic (Young's, Tensile) Modulus, GPa 68
190
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
73
Tensile Strength: Ultimate (UTS), MPa 110 to 300
480 to 1390

Thermal Properties

Latent Heat of Fusion, J/g 400
250
Maximum Temperature: Mechanical, °C 160
420
Melting Completion (Liquidus), °C 650
1460
Melting Onset (Solidus), °C 620
1420
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 190 to 220
44
Thermal Expansion, µm/m-K 23
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 49 to 58
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 160 to 190
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
2.5
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 8.3
1.5
Embodied Energy, MJ/kg 150
20
Embodied Water, L/kg 1190
51

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 11 to 31
17 to 49
Strength to Weight: Bending, points 18 to 37
17 to 35
Thermal Diffusivity, mm2/s 79 to 89
12
Thermal Shock Resistance, points 4.8 to 13
14 to 41

Alloy Composition

Aluminum (Al), % 97.5 to 99.4
0
Carbon (C), % 0
0.15 to 0.21
Chromium (Cr), % 0 to 0.1
0.9 to 1.2
Copper (Cu), % 0 to 0.1
0 to 0.25
Iron (Fe), % 0 to 0.35
96.8 to 98.2
Magnesium (Mg), % 0.45 to 0.9
0
Manganese (Mn), % 0 to 0.1
0.6 to 0.9
Molybdenum (Mo), % 0
0.15 to 0.25
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0.2 to 0.6
0 to 0.4
Sulfur (S), % 0
0 to 0.035
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.15
0