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EN AC-43100 Aluminum vs. SAE-AISI 4047 Steel

EN AC-43100 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-43100 aluminum and the bottom bar is SAE-AISI 4047 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 60 to 94
170
Elastic (Young's, Tensile) Modulus, GPa 71
190
Elongation at Break, % 1.1 to 2.5
23
Fatigue Strength, MPa 68 to 76
220
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
73
Tensile Strength: Ultimate (UTS), MPa 180 to 270
580
Tensile Strength: Yield (Proof), MPa 97 to 230
310

Thermal Properties

Latent Heat of Fusion, J/g 540
250
Maximum Temperature: Mechanical, °C 170
400
Melting Completion (Liquidus), °C 600
1460
Melting Onset (Solidus), °C 590
1420
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 140
48
Thermal Expansion, µm/m-K 22
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 37
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 130
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
2.1
Density, g/cm3 2.6
7.8
Embodied Carbon, kg CO2/kg material 7.8
1.5
Embodied Energy, MJ/kg 150
19
Embodied Water, L/kg 1070
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.9 to 5.7
110
Resilience: Unit (Modulus of Resilience), kJ/m3 66 to 360
260
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 54
24
Strength to Weight: Axial, points 20 to 29
20
Strength to Weight: Bending, points 28 to 36
20
Thermal Diffusivity, mm2/s 60
13
Thermal Shock Resistance, points 8.6 to 12
18

Alloy Composition

Aluminum (Al), % 86.9 to 90.8
0
Carbon (C), % 0
0.45 to 0.5
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0 to 0.55
97.9 to 98.5
Lead (Pb), % 0 to 0.050
0
Magnesium (Mg), % 0.2 to 0.45
0
Manganese (Mn), % 0 to 0.45
0.7 to 0.9
Molybdenum (Mo), % 0
0.2 to 0.3
Nickel (Ni), % 0 to 0.050
0
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 9.0 to 11
0.15 to 0.35
Sulfur (S), % 0
0 to 0.040
Tin (Sn), % 0 to 0.050
0
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.15
0