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EN 1.7767 Steel vs. 8011A Aluminum

EN 1.7767 steel belongs to the iron alloys classification, while 8011A 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 1.7767 steel and the bottom bar is 8011A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 210
25 to 50
Elastic (Young's, Tensile) Modulus, GPa 190
69
Elongation at Break, % 20
1.7 to 28
Fatigue Strength, MPa 320 to 340
33 to 76
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 74
26
Tensile Strength: Ultimate (UTS), MPa 670 to 690
100 to 180
Tensile Strength: Yield (Proof), MPa 460 to 500
34 to 170

Thermal Properties

Latent Heat of Fusion, J/g 250
400
Maximum Temperature: Mechanical, °C 480
170
Melting Completion (Liquidus), °C 1470
650
Melting Onset (Solidus), °C 1430
630
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 40
210
Thermal Expansion, µm/m-K 13
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.7
56
Electrical Conductivity: Equal Weight (Specific), % IACS 8.9
180

Otherwise Unclassified Properties

Base Metal Price, % relative 4.5
9.0
Density, g/cm3 7.9
2.7
Embodied Carbon, kg CO2/kg material 2.4
8.2
Embodied Energy, MJ/kg 33
150
Embodied Water, L/kg 64
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 130
3.0 to 22
Resilience: Unit (Modulus of Resilience), kJ/m3 570 to 650
8.2 to 200
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
50
Strength to Weight: Axial, points 24
11 to 18
Strength to Weight: Bending, points 22
18 to 26
Thermal Diffusivity, mm2/s 11
86
Thermal Shock Resistance, points 19 to 20
4.6 to 8.1

Alloy Composition

Aluminum (Al), % 0
97.5 to 99.1
Carbon (C), % 0.1 to 0.15
0
Chromium (Cr), % 2.8 to 3.3
0 to 0.1
Copper (Cu), % 0 to 0.25
0 to 0.1
Iron (Fe), % 93.8 to 95.8
0.5 to 1.0
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 0.3 to 0.6
0 to 0.1
Molybdenum (Mo), % 0.9 to 1.1
0
Nickel (Ni), % 0 to 0.25
0
Niobium (Nb), % 0 to 0.070
0
Nitrogen (N), % 0 to 0.012
0
Phosphorus (P), % 0 to 0.015
0
Silicon (Si), % 0 to 0.15
0.4 to 0.8
Sulfur (S), % 0 to 0.0050
0
Titanium (Ti), % 0 to 0.030
0 to 0.050
Vanadium (V), % 0.2 to 0.3
0
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15