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EN AC-71100 Aluminum vs. ASTM Grade HL Steel

EN AC-71100 aluminum belongs to the aluminum alloys classification, while ASTM grade HL steel belongs to the iron alloys. There are 26 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 HL steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110
150
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
80
Tensile Strength: Ultimate (UTS), MPa 260
500
Tensile Strength: Yield (Proof), MPa 230
270

Thermal Properties

Latent Heat of Fusion, J/g 490
320
Maximum Temperature: Mechanical, °C 170
1100
Melting Completion (Liquidus), °C 580
1390
Melting Onset (Solidus), °C 520
1340
Specific Heat Capacity, J/kg-K 860
490
Thermal Expansion, µm/m-K 22
17

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
27
Density, g/cm3 2.9
7.8
Embodied Carbon, kg CO2/kg material 7.4
4.5
Embodied Energy, MJ/kg 140
65
Embodied Water, L/kg 1010
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.8
48
Resilience: Unit (Modulus of Resilience), kJ/m3 360
180
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 47
25
Strength to Weight: Axial, points 25
18
Strength to Weight: Bending, points 31
18
Thermal Shock Resistance, points 12
11

Alloy Composition

Aluminum (Al), % 78.7 to 83.3
0
Carbon (C), % 0
0.2 to 0.6
Chromium (Cr), % 0
28 to 32
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0 to 0.3
40.8 to 53.8
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
18 to 22
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