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EN 1.5402 Steel vs. 6151 Aluminum

EN 1.5402 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 1.5402 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, % 23
1.1 to 5.7
Fatigue Strength, MPa 260
80 to 100
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
26
Shear Strength, MPa 370
190 to 200
Tensile Strength: Ultimate (UTS), MPa 580
330 to 340
Tensile Strength: Yield (Proof), MPa 370
270 to 280

Thermal Properties

Latent Heat of Fusion, J/g 250
410
Maximum Temperature: Mechanical, °C 410
170
Melting Completion (Liquidus), °C 1470
650
Melting Onset (Solidus), °C 1420
590
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 51
170
Thermal Expansion, µm/m-K 13
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
45
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
150

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
9.5
Density, g/cm3 7.9
2.7
Embodied Carbon, kg CO2/kg material 1.7
8.2
Embodied Energy, MJ/kg 22
150
Embodied Water, L/kg 49
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
3.5 to 18
Resilience: Unit (Modulus of Resilience), kJ/m3 360
520 to 580
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
50
Strength to Weight: Axial, points 21
34
Strength to Weight: Bending, points 20
39
Thermal Diffusivity, mm2/s 14
70
Thermal Shock Resistance, points 17
15

Alloy Composition

Aluminum (Al), % 0
95.6 to 98.8
Carbon (C), % 0 to 0.18
0
Chromium (Cr), % 0
0.15 to 0.35
Copper (Cu), % 0
0 to 0.35
Iron (Fe), % 97.3 to 98.7
0 to 1.0
Magnesium (Mg), % 0
0.45 to 0.8
Manganese (Mn), % 0.9 to 1.4
0 to 0.2
Molybdenum (Mo), % 0.4 to 0.6
0
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.4
0.6 to 1.2
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
0 to 0.15
Vanadium (V), % 0.040 to 0.080
0
Zinc (Zn), % 0
0 to 0.25
Residuals, % 0
0 to 0.15