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EN AC-48000 Aluminum vs. SAE-AISI 1141 Steel

EN AC-48000 aluminum belongs to the aluminum alloys classification, while SAE-AISI 1141 steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, 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-48000 aluminum and the bottom bar is SAE-AISI 1141 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 100 to 110
210 to 220
Elastic (Young's, Tensile) Modulus, GPa 73
190
Elongation at Break, % 1.0
11 to 17
Fatigue Strength, MPa 85 to 86
270 to 430
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 28
72
Tensile Strength: Ultimate (UTS), MPa 220 to 310
740 to 810
Tensile Strength: Yield (Proof), MPa 210 to 270
400 to 700

Thermal Properties

Latent Heat of Fusion, J/g 570
250
Maximum Temperature: Mechanical, °C 190
400
Melting Completion (Liquidus), °C 600
1460
Melting Onset (Solidus), °C 560
1420
Specific Heat Capacity, J/kg-K 890
470
Thermal Conductivity, W/m-K 130
51
Thermal Expansion, µm/m-K 21
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
10
Electrical Conductivity: Equal Weight (Specific), % IACS 110
12

Otherwise Unclassified Properties

Base Metal Price, % relative 10
1.9
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 7.9
1.4
Embodied Energy, MJ/kg 140
19
Embodied Water, L/kg 1030
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.2 to 3.0
86 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 300 to 510
430 to 1290
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 53
24
Strength to Weight: Axial, points 23 to 33
26 to 29
Strength to Weight: Bending, points 31 to 39
23 to 25
Thermal Diffusivity, mm2/s 54
14
Thermal Shock Resistance, points 10 to 15
24 to 26

Alloy Composition

Aluminum (Al), % 80.4 to 87.2
0
Carbon (C), % 0
0.37 to 0.45
Copper (Cu), % 0.8 to 1.5
0
Iron (Fe), % 0 to 0.7
97.7 to 98.2
Magnesium (Mg), % 0.8 to 1.5
0
Manganese (Mn), % 0 to 0.35
1.4 to 1.7
Nickel (Ni), % 0.7 to 1.3
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 10.5 to 13.5
0
Sulfur (S), % 0
0.080 to 0.13
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.35
0
Residuals, % 0 to 0.15
0