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238.0 Aluminum vs. EN 1.7380 Steel

238.0 aluminum belongs to the aluminum alloys classification, while EN 1.7380 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 1.7380 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 76
190
Elongation at Break, % 1.5
19 to 20
Fatigue Strength, MPa 110
200 to 230
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 28
74
Tensile Strength: Ultimate (UTS), MPa 210
540 to 550
Tensile Strength: Yield (Proof), MPa 170
290 to 330

Thermal Properties

Latent Heat of Fusion, J/g 430
260
Maximum Temperature: Mechanical, °C 170
460
Melting Completion (Liquidus), °C 600
1470
Melting Onset (Solidus), °C 510
1430
Specific Heat Capacity, J/kg-K 840
470
Thermal Conductivity, W/m-K 100
39
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
3.8
Density, g/cm3 3.4
7.9
Embodied Carbon, kg CO2/kg material 7.4
1.8
Embodied Energy, MJ/kg 140
23
Embodied Water, L/kg 1040
59

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.9
87 to 98
Resilience: Unit (Modulus of Resilience), kJ/m3 180
230 to 280
Stiffness to Weight: Axial, points 12
13
Stiffness to Weight: Bending, points 42
24
Strength to Weight: Axial, points 17
19 to 20
Strength to Weight: Bending, points 23
19
Thermal Diffusivity, mm2/s 37
11
Thermal Shock Resistance, points 9.1
15 to 16

Alloy Composition

Aluminum (Al), % 81.9 to 84.9
0
Carbon (C), % 0
0.080 to 0.14
Chromium (Cr), % 0
2.0 to 2.5
Copper (Cu), % 9.5 to 10.5
0 to 0.3
Iron (Fe), % 1.0 to 1.5
94.6 to 96.6
Magnesium (Mg), % 0 to 0.25
0
Manganese (Mn), % 0
0.4 to 0.8
Molybdenum (Mo), % 0
0.9 to 1.1
Nitrogen (N), % 0
0 to 0.012
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 3.6 to 4.4
0 to 0.5
Sulfur (S), % 0
0 to 0.010
Zinc (Zn), % 1.0 to 1.5
0