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238.0 Aluminum vs. EN 1.7386 Steel

238.0 aluminum belongs to the aluminum alloys classification, while EN 1.7386 steel belongs to the iron alloys. There are 29 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 238.0 aluminum and the bottom bar is EN 1.7386 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 76
190
Elongation at Break, % 1.5
18 to 21
Fatigue Strength, MPa 110
170 to 290
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 28
75
Tensile Strength: Ultimate (UTS), MPa 210
550 to 670
Tensile Strength: Yield (Proof), MPa 170
240 to 440

Thermal Properties

Latent Heat of Fusion, J/g 430
270
Maximum Temperature: Mechanical, °C 170
600
Melting Completion (Liquidus), °C 600
1450
Melting Onset (Solidus), °C 510
1410
Specific Heat Capacity, J/kg-K 840
480
Thermal Conductivity, W/m-K 100
26
Thermal Expansion, µm/m-K 21
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
9.0
Electrical Conductivity: Equal Weight (Specific), % IACS 67
10

Otherwise Unclassified Properties

Base Metal Price, % relative 12
6.5
Density, g/cm3 3.4
7.8
Embodied Carbon, kg CO2/kg material 7.4
2.0
Embodied Energy, MJ/kg 140
28
Embodied Water, L/kg 1040
88

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.9
92 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 180
150 to 490
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 42
25
Strength to Weight: Axial, points 17
20 to 24
Strength to Weight: Bending, points 23
19 to 22
Thermal Diffusivity, mm2/s 37
6.9
Thermal Shock Resistance, points 9.1
15 to 18

Alloy Composition

Aluminum (Al), % 81.9 to 84.9
0 to 0.040
Carbon (C), % 0
0.080 to 0.15
Chromium (Cr), % 0
8.0 to 10
Copper (Cu), % 9.5 to 10.5
0 to 0.3
Iron (Fe), % 1.0 to 1.5
86.8 to 90.5
Magnesium (Mg), % 0 to 0.25
0
Manganese (Mn), % 0
0.3 to 0.6
Molybdenum (Mo), % 0
0.9 to 1.1
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 3.6 to 4.4
0.25 to 1.0
Sulfur (S), % 0
0 to 0.010
Zinc (Zn), % 1.0 to 1.5
0