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EN AC-71100 Aluminum vs. EN 1.6771 Steel

EN AC-71100 aluminum belongs to the aluminum alloys classification, while EN 1.6771 steel belongs to the iron alloys. There are 28 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 EN AC-71100 aluminum and the bottom bar is EN 1.6771 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110
280 to 350
Elastic (Young's, Tensile) Modulus, GPa 72
190
Elongation at Break, % 1.1
8.0 to 8.7
Fatigue Strength, MPa 150
440 to 680
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 27
73
Tensile Strength: Ultimate (UTS), MPa 260
930 to 1180
Tensile Strength: Yield (Proof), MPa 230
740 to 1140

Thermal Properties

Latent Heat of Fusion, J/g 490
250
Maximum Temperature: Mechanical, °C 170
440
Melting Completion (Liquidus), °C 580
1460
Melting Onset (Solidus), °C 520
1420
Specific Heat Capacity, J/kg-K 860
470
Thermal Expansion, µm/m-K 22
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 97
9.2

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
5.0
Density, g/cm3 2.9
7.9
Embodied Carbon, kg CO2/kg material 7.4
1.9
Embodied Energy, MJ/kg 140
25
Embodied Water, L/kg 1010
58

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.8
75 to 93
Resilience: Unit (Modulus of Resilience), kJ/m3 360
1460 to 3450
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 47
24
Strength to Weight: Axial, points 25
33 to 41
Strength to Weight: Bending, points 31
27 to 31
Thermal Shock Resistance, points 12
27 to 35

Alloy Composition

Aluminum (Al), % 78.7 to 83.3
0
Carbon (C), % 0
0.27 to 0.33
Chromium (Cr), % 0
0.8 to 1.2
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0 to 0.3
92.2 to 95
Magnesium (Mg), % 0.2 to 0.5
0
Manganese (Mn), % 0 to 0.15
0.6 to 1.0
Molybdenum (Mo), % 0
0.3 to 0.6
Nickel (Ni), % 0
3.0 to 4.0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 7.5 to 9.5
0 to 0.6
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 9.0 to 10.5
0
Residuals, % 0 to 0.15
0