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EN AC-42000 Aluminum vs. SAE-AISI 1045 Steel

EN AC-42000 aluminum belongs to the aluminum alloys classification, while SAE-AISI 1045 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-42000 aluminum and the bottom bar is SAE-AISI 1045 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 59 to 91
180 to 190
Elastic (Young's, Tensile) Modulus, GPa 70
190
Elongation at Break, % 1.1 to 2.4
13 to 18
Fatigue Strength, MPa 67 to 76
220 to 370
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
72
Tensile Strength: Ultimate (UTS), MPa 170 to 270
620 to 680
Tensile Strength: Yield (Proof), MPa 95 to 230
330 to 580

Thermal Properties

Latent Heat of Fusion, J/g 500
250
Maximum Temperature: Mechanical, °C 170
400
Melting Completion (Liquidus), °C 610
1460
Melting Onset (Solidus), °C 600
1420
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 160
51
Thermal Expansion, µm/m-K 22
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 38
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 130
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
1.8
Density, g/cm3 2.6
7.8
Embodied Carbon, kg CO2/kg material 8.0
1.4
Embodied Energy, MJ/kg 150
18
Embodied Water, L/kg 1110
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.8 to 5.7
84 to 93
Resilience: Unit (Modulus of Resilience), kJ/m3 64 to 370
300 to 900
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 53
24
Strength to Weight: Axial, points 18 to 28
22 to 24
Strength to Weight: Bending, points 26 to 35
21 to 22
Thermal Diffusivity, mm2/s 66
14
Thermal Shock Resistance, points 7.9 to 12
20 to 22

Alloy Composition

Aluminum (Al), % 89.9 to 93.3
0
Carbon (C), % 0
0.43 to 0.5
Copper (Cu), % 0 to 0.2
0
Iron (Fe), % 0 to 0.55
98.5 to 99
Lead (Pb), % 0 to 0.15
0
Magnesium (Mg), % 0.2 to 0.65
0
Manganese (Mn), % 0 to 0.35
0.6 to 0.9
Nickel (Ni), % 0 to 0.15
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 6.5 to 7.5
0
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 0 to 0.050
0
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.15
0
Residuals, % 0 to 0.15
0