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EN 1.7362 Steel vs. EN AC-21100 Aluminum

EN 1.7362 steel belongs to the iron alloys classification, while EN AC-21100 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 1.7362 steel and the bottom bar is EN AC-21100 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150 to 180
100 to 110
Elastic (Young's, Tensile) Modulus, GPa 190
71
Elongation at Break, % 21 to 22
6.2 to 7.3
Fatigue Strength, MPa 140 to 250
79 to 87
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 74
27
Tensile Strength: Ultimate (UTS), MPa 510 to 600
340 to 350
Tensile Strength: Yield (Proof), MPa 200 to 360
210 to 240

Thermal Properties

Latent Heat of Fusion, J/g 260
390
Maximum Temperature: Mechanical, °C 510
170
Melting Completion (Liquidus), °C 1460
670
Melting Onset (Solidus), °C 1420
550
Specific Heat Capacity, J/kg-K 470
880
Thermal Conductivity, W/m-K 40
130
Thermal Expansion, µm/m-K 13
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.1
34
Electrical Conductivity: Equal Weight (Specific), % IACS 9.4
100

Otherwise Unclassified Properties

Base Metal Price, % relative 4.5
11
Density, g/cm3 7.8
3.0
Embodied Carbon, kg CO2/kg material 1.8
8.0
Embodied Energy, MJ/kg 23
150
Embodied Water, L/kg 69
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 90 to 110
19 to 21
Resilience: Unit (Modulus of Resilience), kJ/m3 100 to 340
300 to 400
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
46
Strength to Weight: Axial, points 18 to 21
31 to 33
Strength to Weight: Bending, points 18 to 20
36 to 37
Thermal Diffusivity, mm2/s 11
48
Thermal Shock Resistance, points 14 to 17
15

Alloy Composition

Aluminum (Al), % 0
93.4 to 95.7
Carbon (C), % 0.1 to 0.15
0
Chromium (Cr), % 4.0 to 6.0
0
Copper (Cu), % 0 to 0.3
4.2 to 5.2
Iron (Fe), % 91.5 to 95.2
0 to 0.19
Manganese (Mn), % 0.3 to 0.6
0 to 0.55
Molybdenum (Mo), % 0.45 to 0.65
0
Nickel (Ni), % 0 to 0.3
0
Nitrogen (N), % 0 to 0.012
0
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0 to 0.5
0 to 0.18
Sulfur (S), % 0 to 0.0050
0
Titanium (Ti), % 0
0.15 to 0.3
Zinc (Zn), % 0
0 to 0.070
Residuals, % 0
0 to 0.1