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EN AC-71100 Aluminum vs. EN 1.7338 Steel

EN AC-71100 aluminum belongs to the aluminum alloys classification, while EN 1.7338 steel belongs to the iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (5, 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 1.7338 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110
150
Elastic (Young's, Tensile) Modulus, GPa 72
190
Elongation at Break, % 1.1
23
Fatigue Strength, MPa 150
220
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 27
73
Tensile Strength: Ultimate (UTS), MPa 260
490
Tensile Strength: Yield (Proof), MPa 230
300

Thermal Properties

Latent Heat of Fusion, J/g 490
260
Maximum Temperature: Mechanical, °C 170
430
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
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 97
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
3.1
Density, g/cm3 2.9
7.8
Embodied Carbon, kg CO2/kg material 7.4
1.6
Embodied Energy, MJ/kg 140
21
Embodied Water, L/kg 1010
53

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.8
97
Resilience: Unit (Modulus of Resilience), kJ/m3 360
240
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 47
24
Strength to Weight: Axial, points 25
17
Strength to Weight: Bending, points 31
18
Thermal Shock Resistance, points 12
14

Alloy Composition

Aluminum (Al), % 78.7 to 83.3
0 to 0.040
Carbon (C), % 0
0 to 0.15
Chromium (Cr), % 0
1.0 to 1.5
Copper (Cu), % 0 to 0.1
0 to 0.3
Iron (Fe), % 0 to 0.3
95.4 to 97.8
Magnesium (Mg), % 0.2 to 0.5
0
Manganese (Mn), % 0 to 0.15
0.3 to 0.6
Molybdenum (Mo), % 0
0.45 to 0.65
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 7.5 to 9.5
0.5 to 1.0
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 9.0 to 10.5
0
Residuals, % 0 to 0.15
0