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EN 1.6368 Steel vs. EN AC-51500 Aluminum

EN 1.6368 steel belongs to the iron alloys classification, while EN AC-51500 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 1.6368 steel and the bottom bar is EN AC-51500 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 210
80
Elastic (Young's, Tensile) Modulus, GPa 190
68
Elongation at Break, % 18
5.6
Fatigue Strength, MPa 310 to 330
120
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
26
Tensile Strength: Ultimate (UTS), MPa 660 to 690
280
Tensile Strength: Yield (Proof), MPa 460 to 490
160

Thermal Properties

Latent Heat of Fusion, J/g 250
430
Maximum Temperature: Mechanical, °C 410
170
Melting Completion (Liquidus), °C 1460
630
Melting Onset (Solidus), °C 1420
590
Specific Heat Capacity, J/kg-K 470
910
Thermal Conductivity, W/m-K 40
120
Thermal Expansion, µm/m-K 13
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
26
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
88

Otherwise Unclassified Properties

Base Metal Price, % relative 3.4
9.5
Density, g/cm3 7.9
2.6
Embodied Carbon, kg CO2/kg material 1.7
9.0
Embodied Energy, MJ/kg 22
150
Embodied Water, L/kg 53
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
13
Resilience: Unit (Modulus of Resilience), kJ/m3 580 to 650
190
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
52
Strength to Weight: Axial, points 23 to 24
29
Strength to Weight: Bending, points 21 to 22
36
Thermal Diffusivity, mm2/s 11
49
Thermal Shock Resistance, points 20
13

Alloy Composition

Aluminum (Al), % 0.015 to 0.040
89.8 to 93.1
Carbon (C), % 0 to 0.17
0
Chromium (Cr), % 0 to 0.3
0
Copper (Cu), % 0.5 to 0.8
0 to 0.050
Iron (Fe), % 95.1 to 97.2
0 to 0.25
Magnesium (Mg), % 0
4.7 to 6.0
Manganese (Mn), % 0.8 to 1.2
0.4 to 0.8
Molybdenum (Mo), % 0.25 to 0.5
0
Nickel (Ni), % 1.0 to 1.3
0
Niobium (Nb), % 0.015 to 0.045
0
Nitrogen (N), % 0 to 0.020
0
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0.25 to 0.5
1.8 to 2.6
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 0.070
Residuals, % 0
0 to 0.15