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238.0 Aluminum vs. EN 1.5638 Steel

238.0 aluminum belongs to the aluminum alloys classification, while EN 1.5638 steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (1, 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 238.0 aluminum and the bottom bar is EN 1.5638 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 76
190
Elongation at Break, % 1.5
23
Fatigue Strength, MPa 110
290
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 28
73
Tensile Strength: Ultimate (UTS), MPa 210
580
Tensile Strength: Yield (Proof), MPa 170
410

Thermal Properties

Latent Heat of Fusion, J/g 430
250
Maximum Temperature: Mechanical, °C 170
410
Melting Completion (Liquidus), °C 600
1460
Melting Onset (Solidus), °C 510
1420
Specific Heat Capacity, J/kg-K 840
470
Thermal Conductivity, W/m-K 100
52
Thermal Expansion, µm/m-K 21
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 67
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 12
4.0
Density, g/cm3 3.4
7.9
Embodied Carbon, kg CO2/kg material 7.4
1.7
Embodied Energy, MJ/kg 140
23
Embodied Water, L/kg 1040
52

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.9
120
Resilience: Unit (Modulus of Resilience), kJ/m3 180
450
Stiffness to Weight: Axial, points 12
13
Stiffness to Weight: Bending, points 42
24
Strength to Weight: Axial, points 17
20
Strength to Weight: Bending, points 23
20
Thermal Diffusivity, mm2/s 37
14
Thermal Shock Resistance, points 9.1
17

Alloy Composition

Aluminum (Al), % 81.9 to 84.9
0
Carbon (C), % 0
0.060 to 0.12
Copper (Cu), % 9.5 to 10.5
0
Iron (Fe), % 1.0 to 1.5
94.4 to 96.4
Magnesium (Mg), % 0 to 0.25
0
Manganese (Mn), % 0
0.5 to 0.8
Nickel (Ni), % 0
3.0 to 4.0
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 3.6 to 4.4
0 to 0.6
Sulfur (S), % 0
0 to 0.015
Zinc (Zn), % 1.0 to 1.5
0