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EN 1.5113 Steel vs. 4115 Aluminum

EN 1.5113 steel belongs to the iron alloys classification, while 4115 aluminum belongs to the aluminum alloys. 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 4115 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 270
38 to 68
Elastic (Young's, Tensile) Modulus, GPa 190
70
Elongation at Break, % 11 to 18
1.1 to 11
Fatigue Strength, MPa 220 to 470
39 to 76
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 72
26
Shear Strength, MPa 360 to 540
71 to 130
Tensile Strength: Ultimate (UTS), MPa 580 to 900
120 to 220
Tensile Strength: Yield (Proof), MPa 320 to 770
39 to 190

Thermal Properties

Latent Heat of Fusion, J/g 260
420
Maximum Temperature: Mechanical, °C 400
160
Melting Completion (Liquidus), °C 1450
640
Melting Onset (Solidus), °C 1410
590
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 52
160
Thermal Expansion, µm/m-K 13
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
41
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
140

Otherwise Unclassified Properties

Base Metal Price, % relative 2.0
9.5
Density, g/cm3 7.8
2.7
Embodied Carbon, kg CO2/kg material 1.4
8.1
Embodied Energy, MJ/kg 19
150
Embodied Water, L/kg 48
1160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 91 to 96
2.1 to 10
Resilience: Unit (Modulus of Resilience), kJ/m3 270 to 1570
11 to 270
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
50
Strength to Weight: Axial, points 21 to 32
12 to 23
Strength to Weight: Bending, points 20 to 27
20 to 30
Thermal Diffusivity, mm2/s 14
66
Thermal Shock Resistance, points 17 to 26
5.2 to 9.9

Alloy Composition

Aluminum (Al), % 0
94.6 to 97.4
Carbon (C), % 0 to 0.1
0
Copper (Cu), % 0
0.1 to 0.5
Iron (Fe), % 97 to 97.5
0 to 0.7
Magnesium (Mg), % 0
0.1 to 0.5
Manganese (Mn), % 1.6 to 1.8
0.6 to 1.2
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0.9 to 1.1
1.8 to 2.2
Sulfur (S), % 0 to 0.025
0
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.15