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EN AC-44100 Aluminum vs. SAE-AISI 4047 Steel

EN AC-44100 aluminum belongs to the aluminum alloys classification, while SAE-AISI 4047 steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (1, 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-44100 aluminum and the bottom bar is SAE-AISI 4047 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 59
170
Elastic (Young's, Tensile) Modulus, GPa 72
190
Elongation at Break, % 4.9
23
Fatigue Strength, MPa 64
220
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
73
Tensile Strength: Ultimate (UTS), MPa 180
580
Tensile Strength: Yield (Proof), MPa 87
310

Thermal Properties

Latent Heat of Fusion, J/g 570
250
Maximum Temperature: Mechanical, °C 170
400
Melting Completion (Liquidus), °C 590
1460
Melting Onset (Solidus), °C 580
1420
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 130
48
Thermal Expansion, µm/m-K 21
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 34
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 120
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
2.1
Density, g/cm3 2.5
7.8
Embodied Carbon, kg CO2/kg material 7.7
1.5
Embodied Energy, MJ/kg 140
19
Embodied Water, L/kg 1050
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.1
110
Resilience: Unit (Modulus of Resilience), kJ/m3 53
260
Stiffness to Weight: Axial, points 16
13
Stiffness to Weight: Bending, points 55
24
Strength to Weight: Axial, points 19
20
Strength to Weight: Bending, points 27
20
Thermal Diffusivity, mm2/s 58
13
Thermal Shock Resistance, points 8.2
18

Alloy Composition

Aluminum (Al), % 84.4 to 89.5
0
Carbon (C), % 0
0.45 to 0.5
Copper (Cu), % 0 to 0.15
0
Iron (Fe), % 0 to 0.65
97.9 to 98.5
Lead (Pb), % 0 to 0.1
0
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.55
0.7 to 0.9
Molybdenum (Mo), % 0
0.2 to 0.3
Nickel (Ni), % 0 to 0.1
0
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 10.5 to 13.5
0.15 to 0.35
Sulfur (S), % 0
0 to 0.040
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.15
0
Residuals, % 0 to 0.15
0