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EN AC-46400 Aluminum vs. EN 1.8509 Steel

EN AC-46400 aluminum belongs to the aluminum alloys classification, while EN 1.8509 steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, 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-46400 aluminum and the bottom bar is EN 1.8509 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 77 to 120
340
Elastic (Young's, Tensile) Modulus, GPa 72
190
Elongation at Break, % 1.1 to 1.7
11
Fatigue Strength, MPa 75 to 85
580
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
73
Tensile Strength: Ultimate (UTS), MPa 170 to 310
1130
Tensile Strength: Yield (Proof), MPa 110 to 270
940

Thermal Properties

Latent Heat of Fusion, J/g 520
250
Maximum Temperature: Mechanical, °C 170
440
Melting Completion (Liquidus), °C 610
1450
Melting Onset (Solidus), °C 570
1410
Specific Heat Capacity, J/kg-K 890
480
Thermal Conductivity, W/m-K 130
39
Thermal Expansion, µm/m-K 22
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 110
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
2.8
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 7.8
1.6
Embodied Energy, MJ/kg 150
22
Embodied Water, L/kg 1070
65

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 1.7 to 4.9
120
Resilience: Unit (Modulus of Resilience), kJ/m3 82 to 500
2340
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 52
25
Strength to Weight: Axial, points 18 to 32
40
Strength to Weight: Bending, points 26 to 38
31
Thermal Diffusivity, mm2/s 55
10
Thermal Shock Resistance, points 7.8 to 14
33

Alloy Composition

Aluminum (Al), % 85.4 to 90.5
0.8 to 1.2
Carbon (C), % 0
0.38 to 0.45
Chromium (Cr), % 0
1.5 to 1.8
Copper (Cu), % 0.8 to 1.3
0
Iron (Fe), % 0 to 0.8
95.5 to 97.1
Lead (Pb), % 0 to 0.1
0
Magnesium (Mg), % 0.25 to 0.65
0
Manganese (Mn), % 0.15 to 0.55
0.4 to 0.7
Molybdenum (Mo), % 0
0.2 to 0.35
Nickel (Ni), % 0 to 0.2
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 8.3 to 9.7
0 to 0.4
Sulfur (S), % 0
0 to 0.035
Tin (Sn), % 0 to 0.1
0
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.8
0
Residuals, % 0 to 0.25
0