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EN AC-45000 Aluminum vs. SAE-AISI 1080 Steel

EN AC-45000 aluminum belongs to the aluminum alloys classification, while SAE-AISI 1080 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-45000 aluminum and the bottom bar is SAE-AISI 1080 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 77
220 to 260
Elastic (Young's, Tensile) Modulus, GPa 73
190
Elongation at Break, % 1.1
11
Fatigue Strength, MPa 75
300 to 360
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
72
Tensile Strength: Ultimate (UTS), MPa 180
770 to 870
Tensile Strength: Yield (Proof), MPa 110
480 to 590

Thermal Properties

Latent Heat of Fusion, J/g 470
250
Maximum Temperature: Mechanical, °C 180
400
Melting Completion (Liquidus), °C 640
1450
Melting Onset (Solidus), °C 520
1410
Specific Heat Capacity, J/kg-K 870
470
Thermal Conductivity, W/m-K 120
51
Thermal Expansion, µm/m-K 22
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
9.6
Electrical Conductivity: Equal Weight (Specific), % IACS 81
11

Otherwise Unclassified Properties

Base Metal Price, % relative 11
1.8
Density, g/cm3 3.0
7.8
Embodied Carbon, kg CO2/kg material 7.7
1.4
Embodied Energy, MJ/kg 140
19
Embodied Water, L/kg 1070
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 1.7
80 to 84
Resilience: Unit (Modulus of Resilience), kJ/m3 80
610 to 920
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 47
24
Strength to Weight: Axial, points 17
27 to 31
Strength to Weight: Bending, points 24
24 to 26
Thermal Diffusivity, mm2/s 47
14
Thermal Shock Resistance, points 8.0
25 to 29

Alloy Composition

Aluminum (Al), % 82.2 to 91.8
0
Carbon (C), % 0
0.75 to 0.88
Chromium (Cr), % 0 to 0.15
0
Copper (Cu), % 3.0 to 5.0
0
Iron (Fe), % 0 to 1.0
98.1 to 98.7
Lead (Pb), % 0 to 0.3
0
Magnesium (Mg), % 0 to 0.55
0
Manganese (Mn), % 0.2 to 0.65
0.6 to 0.9
Nickel (Ni), % 0 to 0.45
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 5.0 to 7.0
0
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 0 to 0.15
0
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 2.0
0
Residuals, % 0 to 0.35
0