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EN 1.6580 Steel vs. EN AC-45100 Aluminum

EN 1.6580 steel belongs to the iron alloys classification, while EN AC-45100 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 1.6580 steel and the bottom bar is EN AC-45100 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 350
97 to 130
Elastic (Young's, Tensile) Modulus, GPa 190
72
Elongation at Break, % 11 to 19
1.0 to 2.8
Fatigue Strength, MPa 310 to 610
82 to 99
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
27
Tensile Strength: Ultimate (UTS), MPa 720 to 1170
300 to 360
Tensile Strength: Yield (Proof), MPa 460 to 990
210 to 320

Thermal Properties

Latent Heat of Fusion, J/g 250
470
Maximum Temperature: Mechanical, °C 450
170
Melting Completion (Liquidus), °C 1460
630
Melting Onset (Solidus), °C 1420
550
Specific Heat Capacity, J/kg-K 470
890
Thermal Conductivity, W/m-K 40
140
Thermal Expansion, µm/m-K 13
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.8
30
Electrical Conductivity: Equal Weight (Specific), % IACS 8.9
95

Otherwise Unclassified Properties

Base Metal Price, % relative 4.3
10
Density, g/cm3 7.9
2.8
Embodied Carbon, kg CO2/kg material 1.8
7.9
Embodied Energy, MJ/kg 23
150
Embodied Water, L/kg 59
1100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 130
3.5 to 7.6
Resilience: Unit (Modulus of Resilience), kJ/m3 560 to 2590
290 to 710
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
49
Strength to Weight: Axial, points 26 to 41
30 to 35
Strength to Weight: Bending, points 23 to 31
35 to 39
Thermal Diffusivity, mm2/s 11
54
Thermal Shock Resistance, points 21 to 34
14 to 16

Alloy Composition

Aluminum (Al), % 0
88 to 92.8
Carbon (C), % 0.26 to 0.34
0
Chromium (Cr), % 1.8 to 2.2
0
Copper (Cu), % 0
2.6 to 3.6
Iron (Fe), % 93.7 to 95.5
0 to 0.6
Lead (Pb), % 0
0 to 0.1
Magnesium (Mg), % 0
0.15 to 0.45
Manganese (Mn), % 0.3 to 0.6
0 to 0.55
Molybdenum (Mo), % 0.3 to 0.5
0
Nickel (Ni), % 1.8 to 2.2
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