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EN AC-47100 Aluminum vs. SAE-AISI 1084 Steel

EN AC-47100 aluminum belongs to the aluminum alloys classification, while SAE-AISI 1084 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-47100 aluminum and the bottom bar is SAE-AISI 1084 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
220 to 270
Elastic (Young's, Tensile) Modulus, GPa 73
190
Elongation at Break, % 1.1
11
Fatigue Strength, MPa 110
320 to 370
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
72
Tensile Strength: Ultimate (UTS), MPa 270
780 to 930
Tensile Strength: Yield (Proof), MPa 160
510 to 600

Thermal Properties

Latent Heat of Fusion, J/g 570
240
Maximum Temperature: Mechanical, °C 170
400
Melting Completion (Liquidus), °C 590
1450
Melting Onset (Solidus), °C 560
1410
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 30
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 100
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
1.8
Density, g/cm3 2.6
7.8
Embodied Carbon, kg CO2/kg material 7.6
1.4
Embodied Energy, MJ/kg 140
19
Embodied Water, L/kg 1030
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.6
81 to 89
Resilience: Unit (Modulus of Resilience), kJ/m3 170
700 to 960
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 53
24
Strength to Weight: Axial, points 28
28 to 33
Strength to Weight: Bending, points 35
24 to 27
Thermal Diffusivity, mm2/s 54
14
Thermal Shock Resistance, points 12
25 to 30

Alloy Composition

Aluminum (Al), % 81.4 to 88.8
0
Carbon (C), % 0
0.8 to 0.93
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 0.7 to 1.2
0
Iron (Fe), % 0 to 1.3
98.1 to 98.6
Lead (Pb), % 0 to 0.2
0
Magnesium (Mg), % 0 to 0.35
0
Manganese (Mn), % 0 to 0.55
0.6 to 0.9
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 10.5 to 13.5
0
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 0 to 0.1
0
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.55
0
Residuals, % 0 to 0.25
0