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EN 1.5113 Steel vs. 5251 Aluminum

EN 1.5113 steel belongs to the iron alloys classification, while 5251 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 5251 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 270
44 to 79
Elastic (Young's, Tensile) Modulus, GPa 190
68
Elongation at Break, % 11 to 18
2.0 to 19
Fatigue Strength, MPa 220 to 470
59 to 110
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 72
26
Shear Strength, MPa 360 to 540
110 to 160
Tensile Strength: Ultimate (UTS), MPa 580 to 900
180 to 280
Tensile Strength: Yield (Proof), MPa 320 to 770
67 to 250

Thermal Properties

Latent Heat of Fusion, J/g 260
400
Maximum Temperature: Mechanical, °C 400
180
Melting Completion (Liquidus), °C 1450
650
Melting Onset (Solidus), °C 1410
610
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 52
150
Thermal Expansion, µm/m-K 13
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
37
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
120

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
8.5
Embodied Energy, MJ/kg 19
150
Embodied Water, L/kg 48
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 91 to 96
5.4 to 27
Resilience: Unit (Modulus of Resilience), kJ/m3 270 to 1570
33 to 450
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
50
Strength to Weight: Axial, points 21 to 32
18 to 29
Strength to Weight: Bending, points 20 to 27
26 to 35
Thermal Diffusivity, mm2/s 14
61
Thermal Shock Resistance, points 17 to 26
7.9 to 13

Alloy Composition

Aluminum (Al), % 0
95.5 to 98.2
Carbon (C), % 0 to 0.1
0
Chromium (Cr), % 0
0 to 0.15
Copper (Cu), % 0
0 to 0.15
Iron (Fe), % 97 to 97.5
0 to 0.5
Magnesium (Mg), % 0
1.7 to 2.4
Manganese (Mn), % 1.6 to 1.8
0.1 to 0.5
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0.9 to 1.1
0 to 0.4
Sulfur (S), % 0 to 0.025
0
Titanium (Ti), % 0
0 to 0.15
Zinc (Zn), % 0
0 to 0.15
Residuals, % 0
0 to 0.15