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EN 1.7366 Steel vs. EN AC-51200 Aluminum

EN 1.7366 steel belongs to the iron alloys classification, while EN AC-51200 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 1.7366 steel and the bottom bar is EN AC-51200 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140 to 210
80
Elastic (Young's, Tensile) Modulus, GPa 190
67
Elongation at Break, % 17 to 19
1.1
Fatigue Strength, MPa 160 to 320
100
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 74
25
Tensile Strength: Ultimate (UTS), MPa 460 to 710
220
Tensile Strength: Yield (Proof), MPa 230 to 480
150

Thermal Properties

Latent Heat of Fusion, J/g 260
410
Maximum Temperature: Mechanical, °C 510
170
Melting Completion (Liquidus), °C 1460
640
Melting Onset (Solidus), °C 1420
570
Specific Heat Capacity, J/kg-K 470
910
Thermal Conductivity, W/m-K 40
92
Thermal Expansion, µm/m-K 13
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.1
22
Electrical Conductivity: Equal Weight (Specific), % IACS 9.3
74

Otherwise Unclassified Properties

Base Metal Price, % relative 4.3
9.5
Density, g/cm3 7.8
2.6
Embodied Carbon, kg CO2/kg material 1.7
9.6
Embodied Energy, MJ/kg 23
150
Embodied Water, L/kg 69
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 74 to 110
2.2
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 600
160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
51
Strength to Weight: Axial, points 16 to 25
24
Strength to Weight: Bending, points 17 to 23
31
Thermal Diffusivity, mm2/s 11
39
Thermal Shock Resistance, points 13 to 20
10

Alloy Composition

Aluminum (Al), % 0
84.5 to 92
Carbon (C), % 0 to 0.18
0
Chromium (Cr), % 4.0 to 6.0
0
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 91.9 to 95.3
0 to 1.0
Lead (Pb), % 0
0 to 0.1
Magnesium (Mg), % 0
8.0 to 10.5
Manganese (Mn), % 0.3 to 0.8
0 to 0.55
Molybdenum (Mo), % 0.45 to 0.65
0
Nickel (Ni), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.4
0 to 2.5
Sulfur (S), % 0 to 0.015
0
Tin (Sn), % 0
0 to 0.1
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0
0 to 0.25
Residuals, % 0
0 to 0.15