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EN AC-71100 Aluminum vs. ASTM Grade HH Steel

EN AC-71100 aluminum belongs to the aluminum alloys classification, while ASTM grade HH 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 ASTM grade HH steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110
170
Elastic (Young's, Tensile) Modulus, GPa 72
200
Elongation at Break, % 1.1
11
Fatigue Strength, MPa 150
150
Poisson's Ratio 0.32
0.27
Shear Modulus, GPa 27
79
Tensile Strength: Ultimate (UTS), MPa 260
580
Tensile Strength: Yield (Proof), MPa 230
270

Thermal Properties

Latent Heat of Fusion, J/g 490
310
Maximum Temperature: Mechanical, °C 170
1100
Melting Completion (Liquidus), °C 580
1400
Melting Onset (Solidus), °C 520
1360
Specific Heat Capacity, J/kg-K 860
480
Thermal Expansion, µm/m-K 22
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 97
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
20
Density, g/cm3 2.9
7.7
Embodied Carbon, kg CO2/kg material 7.4
3.7
Embodied Energy, MJ/kg 140
53
Embodied Water, L/kg 1010
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.8
53
Resilience: Unit (Modulus of Resilience), kJ/m3 360
190
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 47
25
Strength to Weight: Axial, points 25
21
Strength to Weight: Bending, points 31
20
Thermal Shock Resistance, points 12
12

Alloy Composition

Aluminum (Al), % 78.7 to 83.3
0
Carbon (C), % 0
0.2 to 0.5
Chromium (Cr), % 0
24 to 28
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0 to 0.3
52.9 to 64.8
Magnesium (Mg), % 0.2 to 0.5
0
Manganese (Mn), % 0 to 0.15
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
11 to 14
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 7.5 to 9.5
0 to 2.0
Sulfur (S), % 0
0 to 0.040
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 9.0 to 10.5
0
Residuals, % 0 to 0.15
0