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EN AC-71100 Aluminum vs. SAE-AISI 1541 Steel

EN AC-71100 aluminum belongs to the aluminum alloys classification, while SAE-AISI 1541 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 SAE-AISI 1541 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110
210 to 220
Elastic (Young's, Tensile) Modulus, GPa 72
190
Elongation at Break, % 1.1
11 to 17
Fatigue Strength, MPa 150
260 to 420
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 27
73
Tensile Strength: Ultimate (UTS), MPa 260
720 to 790
Tensile Strength: Yield (Proof), MPa 230
390 to 680

Thermal Properties

Latent Heat of Fusion, J/g 490
250
Maximum Temperature: Mechanical, °C 170
400
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
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 97
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
1.9
Density, g/cm3 2.9
7.8
Embodied Carbon, kg CO2/kg material 7.4
1.4
Embodied Energy, MJ/kg 140
19
Embodied Water, L/kg 1010
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.8
78 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 360
410 to 1250
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 47
24
Strength to Weight: Axial, points 25
25 to 28
Strength to Weight: Bending, points 31
23 to 24
Thermal Shock Resistance, points 12
23 to 25

Alloy Composition

Aluminum (Al), % 78.7 to 83.3
0
Carbon (C), % 0
0.36 to 0.44
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0 to 0.3
97.8 to 98.3
Magnesium (Mg), % 0.2 to 0.5
0
Manganese (Mn), % 0 to 0.15
1.4 to 1.7
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 7.5 to 9.5
0
Sulfur (S), % 0
0 to 0.050
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 9.0 to 10.5
0
Residuals, % 0 to 0.15
0