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EN 1.5113 Steel vs. 4145 Aluminum

EN 1.5113 steel belongs to the iron alloys classification, while 4145 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, 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 EN 1.5113 steel and the bottom bar is 4145 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
73
Elongation at Break, % 11 to 18
2.2
Fatigue Strength, MPa 220 to 470
48
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 72
28
Shear Strength, MPa 360 to 540
69
Tensile Strength: Ultimate (UTS), MPa 580 to 900
120
Tensile Strength: Yield (Proof), MPa 320 to 770
68

Thermal Properties

Latent Heat of Fusion, J/g 260
540
Maximum Temperature: Mechanical, °C 400
160
Melting Completion (Liquidus), °C 1450
590
Melting Onset (Solidus), °C 1410
520
Specific Heat Capacity, J/kg-K 480
880
Thermal Conductivity, W/m-K 52
100
Thermal Expansion, µm/m-K 13
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
26
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
84

Otherwise Unclassified Properties

Base Metal Price, % relative 2.0
10
Density, g/cm3 7.8
2.8
Embodied Carbon, kg CO2/kg material 1.4
7.6
Embodied Energy, MJ/kg 19
140
Embodied Water, L/kg 48
1040

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 91 to 96
2.3
Resilience: Unit (Modulus of Resilience), kJ/m3 270 to 1570
31
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
50
Strength to Weight: Axial, points 21 to 32
12
Strength to Weight: Bending, points 20 to 27
19
Thermal Diffusivity, mm2/s 14
42
Thermal Shock Resistance, points 17 to 26
5.5

Alloy Composition

Aluminum (Al), % 0
83 to 87.4
Carbon (C), % 0 to 0.1
0
Chromium (Cr), % 0
0 to 0.15
Copper (Cu), % 0
3.3 to 4.7
Iron (Fe), % 97 to 97.5
0 to 0.8
Magnesium (Mg), % 0
0 to 0.15
Manganese (Mn), % 1.6 to 1.8
0 to 0.15
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0.9 to 1.1
9.3 to 10.7
Sulfur (S), % 0 to 0.025
0
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.15