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242.0-O Aluminum vs. EN 1.7711 +A Steel

242.0-O aluminum belongs to the aluminum alloys classification, while EN 1.7711 +A steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, 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 242.0-O aluminum and the bottom bar is EN 1.7711 +A steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 70
210
Elastic (Young's, Tensile) Modulus, GPa 73
190
Elongation at Break, % 1.0
22
Fatigue Strength, MPa 110
290
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
73
Tensile Strength: Ultimate (UTS), MPa 180
690
Tensile Strength: Yield (Proof), MPa 120
400

Thermal Properties

Latent Heat of Fusion, J/g 390
250
Maximum Temperature: Mechanical, °C 210
430
Melting Completion (Liquidus), °C 640
1460
Melting Onset (Solidus), °C 530
1420
Specific Heat Capacity, J/kg-K 870
470
Thermal Conductivity, W/m-K 170
33
Thermal Expansion, µm/m-K 22
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 44
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 130
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 12
3.0
Density, g/cm3 3.1
7.8
Embodied Carbon, kg CO2/kg material 8.3
2.3
Embodied Energy, MJ/kg 150
32
Embodied Water, L/kg 1130
54

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 1.6
130
Resilience: Unit (Modulus of Resilience), kJ/m3 110
430
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 45
24
Strength to Weight: Axial, points 16
24
Strength to Weight: Bending, points 23
22
Thermal Diffusivity, mm2/s 62
8.9
Thermal Shock Resistance, points 8.0
24

Alloy Composition

Aluminum (Al), % 88.4 to 93.6
0 to 0.015
Carbon (C), % 0
0.36 to 0.44
Chromium (Cr), % 0 to 0.25
0.9 to 1.2
Copper (Cu), % 3.5 to 4.5
0
Iron (Fe), % 0 to 1.0
96 to 97.5
Magnesium (Mg), % 1.2 to 1.8
0
Manganese (Mn), % 0 to 0.35
0.45 to 0.85
Molybdenum (Mo), % 0
0.5 to 0.65
Nickel (Ni), % 1.7 to 2.3
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.7
0 to 0.4
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.25
0
Vanadium (V), % 0
0.25 to 0.35
Zinc (Zn), % 0 to 0.35
0
Residuals, % 0 to 0.15
0