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238.0 Aluminum vs. EN 1.4931 Steel

238.0 aluminum belongs to the aluminum alloys classification, while EN 1.4931 steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, 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 1.4931 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 76
200
Elongation at Break, % 1.5
17
Fatigue Strength, MPa 110
410
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 28
76
Tensile Strength: Ultimate (UTS), MPa 210
810
Tensile Strength: Yield (Proof), MPa 170
620

Thermal Properties

Latent Heat of Fusion, J/g 430
270
Maximum Temperature: Mechanical, °C 170
600
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
24
Thermal Expansion, µm/m-K 21
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
9.8
Electrical Conductivity: Equal Weight (Specific), % IACS 67
11

Otherwise Unclassified Properties

Base Metal Price, % relative 12
8.5
Density, g/cm3 3.4
7.8
Embodied Carbon, kg CO2/kg material 7.4
2.9
Embodied Energy, MJ/kg 140
42
Embodied Water, L/kg 1040
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.9
130
Resilience: Unit (Modulus of Resilience), kJ/m3 180
970
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 42
25
Strength to Weight: Axial, points 17
29
Strength to Weight: Bending, points 23
25
Thermal Diffusivity, mm2/s 37
6.5
Thermal Shock Resistance, points 9.1
22

Alloy Composition

Aluminum (Al), % 81.9 to 84.9
0
Carbon (C), % 0
0.2 to 0.26
Chromium (Cr), % 0
11.3 to 12.2
Copper (Cu), % 9.5 to 10.5
0
Iron (Fe), % 1.0 to 1.5
83.2 to 86.8
Magnesium (Mg), % 0 to 0.25
0
Manganese (Mn), % 0
0.5 to 0.8
Molybdenum (Mo), % 0
1.0 to 1.2
Nickel (Ni), % 0
0 to 1.0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 3.6 to 4.4
0 to 0.4
Sulfur (S), % 0
0 to 0.020
Tungsten (W), % 0
0 to 0.5
Vanadium (V), % 0
0.25 to 0.35
Zinc (Zn), % 1.0 to 1.5
0