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SAE-AISI 1065 Steel vs. EN AC-71100 Aluminum

SAE-AISI 1065 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 SAE-AISI 1065 steel and the bottom bar is EN AC-71100 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 230
110
Elastic (Young's, Tensile) Modulus, GPa 190
72
Elongation at Break, % 11 to 14
1.1
Fatigue Strength, MPa 270 to 340
150
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 72
27
Tensile Strength: Ultimate (UTS), MPa 710 to 780
260
Tensile Strength: Yield (Proof), MPa 430 to 550
230

Thermal Properties

Latent Heat of Fusion, J/g 250
490
Maximum Temperature: Mechanical, °C 400
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 11
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
32
Electrical Conductivity: Equal Weight (Specific), % IACS 12
97

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
9.5
Density, g/cm3 7.8
2.9
Embodied Carbon, kg CO2/kg material 1.4
7.4
Embodied Energy, MJ/kg 19
140
Embodied Water, L/kg 46
1010

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 74 to 90
2.8
Resilience: Unit (Modulus of Resilience), kJ/m3 490 to 820
360
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
47
Strength to Weight: Axial, points 25 to 28
25
Strength to Weight: Bending, points 23 to 24
31
Thermal Shock Resistance, points 25 to 27
12

Alloy Composition

Aluminum (Al), % 0
78.7 to 83.3
Carbon (C), % 0.6 to 0.7
0
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 98.3 to 98.8
0 to 0.3
Magnesium (Mg), % 0
0.2 to 0.5
Manganese (Mn), % 0.6 to 0.9
0 to 0.15
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0
7.5 to 9.5
Sulfur (S), % 0 to 0.050
0
Titanium (Ti), % 0
0 to 0.15
Zinc (Zn), % 0
9.0 to 10.5
Residuals, % 0
0 to 0.15