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EN AC-51500 Aluminum vs. SAE-AISI 1046 Steel

EN AC-51500 aluminum belongs to the aluminum alloys classification, while SAE-AISI 1046 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-51500 aluminum and the bottom bar is SAE-AISI 1046 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
190 to 210
Elastic (Young's, Tensile) Modulus, GPa 68
190
Elongation at Break, % 5.6
14 to 17
Fatigue Strength, MPa 120
240 to 390
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
72
Tensile Strength: Ultimate (UTS), MPa 280
660 to 740
Tensile Strength: Yield (Proof), MPa 160
370 to 610

Thermal Properties

Latent Heat of Fusion, J/g 430
250
Maximum Temperature: Mechanical, °C 170
400
Melting Completion (Liquidus), °C 630
1460
Melting Onset (Solidus), °C 590
1420
Specific Heat Capacity, J/kg-K 910
470
Thermal Conductivity, W/m-K 120
51
Thermal Expansion, µm/m-K 23
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
11
Electrical Conductivity: Equal Weight (Specific), % IACS 88
12

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
1.8
Density, g/cm3 2.6
7.8
Embodied Carbon, kg CO2/kg material 9.0
1.4
Embodied Energy, MJ/kg 150
18
Embodied Water, L/kg 1150
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 13
91 to 95
Resilience: Unit (Modulus of Resilience), kJ/m3 190
360 to 990
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 52
24
Strength to Weight: Axial, points 29
23 to 26
Strength to Weight: Bending, points 36
22 to 23
Thermal Diffusivity, mm2/s 49
14
Thermal Shock Resistance, points 13
23 to 25

Alloy Composition

Aluminum (Al), % 89.8 to 93.1
0
Carbon (C), % 0
0.43 to 0.5
Copper (Cu), % 0 to 0.050
0
Iron (Fe), % 0 to 0.25
98.4 to 98.9
Magnesium (Mg), % 4.7 to 6.0
0
Manganese (Mn), % 0.4 to 0.8
0.7 to 1.0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 1.8 to 2.6
0
Sulfur (S), % 0
0 to 0.050
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.070
0
Residuals, % 0 to 0.15
0