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EN 1.1221 Steel vs. 713.0 Aluminum

EN 1.1221 steel belongs to the iron alloys classification, while 713.0 aluminum belongs to the aluminum alloys. There are 31 material properties with values for both materials. Properties with values for just one material (1, 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 1.1221 steel and the bottom bar is 713.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 250
74 to 75
Elastic (Young's, Tensile) Modulus, GPa 190
71
Elongation at Break, % 10 to 21
3.9 to 4.3
Fatigue Strength, MPa 240 to 340
63 to 120
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 72
27
Shear Strength, MPa 450 to 520
180
Tensile Strength: Ultimate (UTS), MPa 730 to 870
240 to 260
Tensile Strength: Yield (Proof), MPa 390 to 550
170

Thermal Properties

Latent Heat of Fusion, J/g 250
370
Maximum Temperature: Mechanical, °C 400
180
Melting Completion (Liquidus), °C 1460
630
Melting Onset (Solidus), °C 1410
610
Specific Heat Capacity, J/kg-K 470
860
Thermal Conductivity, W/m-K 48
150
Thermal Expansion, µm/m-K 12
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
35
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
100

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
9.5
Density, g/cm3 7.8
3.1
Embodied Carbon, kg CO2/kg material 1.5
7.8
Embodied Energy, MJ/kg 19
150
Embodied Water, L/kg 47
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 67 to 130
8.7 to 9.9
Resilience: Unit (Modulus of Resilience), kJ/m3 410 to 800
210 to 220
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
45
Strength to Weight: Axial, points 26 to 31
22 to 23
Strength to Weight: Bending, points 23 to 26
28 to 29
Thermal Diffusivity, mm2/s 13
57
Thermal Shock Resistance, points 23 to 28
10 to 11

Alloy Composition

Aluminum (Al), % 0
87.6 to 92.4
Carbon (C), % 0.57 to 0.65
0
Chromium (Cr), % 0 to 0.4
0 to 0.35
Copper (Cu), % 0
0.4 to 1.0
Iron (Fe), % 97.1 to 98.8
0 to 1.1
Magnesium (Mg), % 0
0.2 to 0.5
Manganese (Mn), % 0.6 to 0.9
0 to 0.6
Molybdenum (Mo), % 0 to 0.1
0
Nickel (Ni), % 0 to 0.4
0 to 0.15
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 0.4
0 to 0.25
Sulfur (S), % 0 to 0.035
0
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
7.0 to 8.0
Residuals, % 0
0 to 0.25