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EN 1.6511 Steel vs. EN AC-45400 Aluminum

EN 1.6511 steel belongs to the iron alloys classification, while EN AC-45400 aluminum belongs to the aluminum alloys. There are 30 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 EN 1.6511 steel and the bottom bar is EN AC-45400 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 300
86
Elastic (Young's, Tensile) Modulus, GPa 190
72
Elongation at Break, % 12
6.7
Fatigue Strength, MPa 480
55
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
27
Tensile Strength: Ultimate (UTS), MPa 990
260
Tensile Strength: Yield (Proof), MPa 770
130

Thermal Properties

Latent Heat of Fusion, J/g 250
470
Maximum Temperature: Mechanical, °C 430
170
Melting Completion (Liquidus), °C 1460
630
Melting Onset (Solidus), °C 1420
560
Specific Heat Capacity, J/kg-K 470
880
Thermal Conductivity, W/m-K 36
140
Thermal Expansion, µm/m-K 13
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
30
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
95

Otherwise Unclassified Properties

Base Metal Price, % relative 3.1
10
Density, g/cm3 7.8
2.8
Embodied Carbon, kg CO2/kg material 1.6
7.8
Embodied Energy, MJ/kg 21
150
Embodied Water, L/kg 53
1100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
14
Resilience: Unit (Modulus of Resilience), kJ/m3 1590
110
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
49
Strength to Weight: Axial, points 35
25
Strength to Weight: Bending, points 28
32
Thermal Diffusivity, mm2/s 9.9
54
Thermal Shock Resistance, points 29
12

Alloy Composition

Aluminum (Al), % 0
88.4 to 92.9
Carbon (C), % 0.32 to 0.4
0
Chromium (Cr), % 0.9 to 1.2
0
Copper (Cu), % 0
2.6 to 3.6
Iron (Fe), % 95.6 to 97.2
0 to 0.6
Lead (Pb), % 0
0 to 0.1
Magnesium (Mg), % 0
0 to 0.050
Manganese (Mn), % 0.5 to 0.8
0 to 0.55
Molybdenum (Mo), % 0.15 to 0.3
0
Nickel (Ni), % 0.9 to 1.2
0 to 0.1
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 0.4
4.5 to 6.0
Sulfur (S), % 0 to 0.035
0
Tin (Sn), % 0
0 to 0.050
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.15