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ASTM A387 Grade 11 Steel vs. EN AC-71100 Aluminum

ASTM A387 grade 11 steel belongs to the iron alloys classification, while EN AC-71100 aluminum belongs to the aluminum 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 ASTM A387 grade 11 steel and the bottom bar is EN AC-71100 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150 to 180
110
Elastic (Young's, Tensile) Modulus, GPa 190
72
Elongation at Break, % 25
1.1
Fatigue Strength, MPa 200 to 250
150
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 73
27
Tensile Strength: Ultimate (UTS), MPa 500 to 600
260
Tensile Strength: Yield (Proof), MPa 270 to 350
230

Thermal Properties

Latent Heat of Fusion, J/g 260
490
Maximum Temperature: Mechanical, °C 430
170
Melting Completion (Liquidus), °C 1460
580
Melting Onset (Solidus), °C 1420
520
Specific Heat Capacity, J/kg-K 470
860
Thermal Expansion, µm/m-K 13
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
32
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
97

Otherwise Unclassified Properties

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

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100 to 130
2.8
Resilience: Unit (Modulus of Resilience), kJ/m3 200 to 320
360
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
47
Strength to Weight: Axial, points 18 to 21
25
Strength to Weight: Bending, points 18 to 20
31
Thermal Shock Resistance, points 15 to 18
12

Alloy Composition

Aluminum (Al), % 0
78.7 to 83.3
Carbon (C), % 0.050 to 0.17
0
Chromium (Cr), % 1.0 to 1.5
0
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 96.2 to 97.6
0 to 0.3
Magnesium (Mg), % 0
0.2 to 0.5
Manganese (Mn), % 0.4 to 0.65
0 to 0.15
Molybdenum (Mo), % 0.45 to 0.65
0
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0.5 to 0.8
7.5 to 9.5
Sulfur (S), % 0 to 0.025
0
Titanium (Ti), % 0
0 to 0.15
Zinc (Zn), % 0
9.0 to 10.5
Residuals, % 0
0 to 0.15