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EN 1.6580 Steel vs. 6151 Aluminum

EN 1.6580 steel belongs to the iron alloys classification, while 6151 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 6151 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
69
Elongation at Break, % 11 to 19
1.1 to 5.7
Fatigue Strength, MPa 310 to 610
80 to 100
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
26
Shear Strength, MPa 450 to 700
190 to 200
Tensile Strength: Ultimate (UTS), MPa 720 to 1170
330 to 340
Tensile Strength: Yield (Proof), MPa 460 to 990
270 to 280

Thermal Properties

Latent Heat of Fusion, J/g 250
410
Maximum Temperature: Mechanical, °C 450
170
Melting Completion (Liquidus), °C 1460
650
Melting Onset (Solidus), °C 1420
590
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 40
170
Thermal Expansion, µm/m-K 13
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.8
45
Electrical Conductivity: Equal Weight (Specific), % IACS 8.9
150

Otherwise Unclassified Properties

Base Metal Price, % relative 4.3
9.5
Density, g/cm3 7.9
2.7
Embodied Carbon, kg CO2/kg material 1.8
8.2
Embodied Energy, MJ/kg 23
150
Embodied Water, L/kg 59
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 130
3.5 to 18
Resilience: Unit (Modulus of Resilience), kJ/m3 560 to 2590
520 to 580
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
50
Strength to Weight: Axial, points 26 to 41
34
Strength to Weight: Bending, points 23 to 31
39
Thermal Diffusivity, mm2/s 11
70
Thermal Shock Resistance, points 21 to 34
15

Alloy Composition

Aluminum (Al), % 0
95.6 to 98.8
Carbon (C), % 0.26 to 0.34
0
Chromium (Cr), % 1.8 to 2.2
0.15 to 0.35
Copper (Cu), % 0
0 to 0.35
Iron (Fe), % 93.7 to 95.5
0 to 1.0
Magnesium (Mg), % 0
0.45 to 0.8
Manganese (Mn), % 0.3 to 0.6
0 to 0.2
Molybdenum (Mo), % 0.3 to 0.5
0
Nickel (Ni), % 1.8 to 2.2
0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 0.4
0.6 to 1.2
Sulfur (S), % 0 to 0.035
0
Titanium (Ti), % 0
0 to 0.15
Zinc (Zn), % 0
0 to 0.25
Residuals, % 0
0 to 0.15