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EN AC-44000 Aluminum vs. EN 1.7706 Steel

EN AC-44000 aluminum belongs to the aluminum alloys classification, while EN 1.7706 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-44000 aluminum and the bottom bar is EN 1.7706 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 51
210
Elastic (Young's, Tensile) Modulus, GPa 71
190
Elongation at Break, % 7.3
17
Fatigue Strength, MPa 64
330
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
73
Tensile Strength: Ultimate (UTS), MPa 180
690
Tensile Strength: Yield (Proof), MPa 86
500

Thermal Properties

Latent Heat of Fusion, J/g 560
260
Maximum Temperature: Mechanical, °C 170
440
Melting Completion (Liquidus), °C 590
1470
Melting Onset (Solidus), °C 590
1430
Specific Heat Capacity, J/kg-K 910
470
Thermal Conductivity, W/m-K 140
40
Thermal Expansion, µm/m-K 21
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 130
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
3.7
Density, g/cm3 2.5
7.9
Embodied Carbon, kg CO2/kg material 7.8
2.3
Embodied Energy, MJ/kg 150
32
Embodied Water, L/kg 1070
57

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
110
Resilience: Unit (Modulus of Resilience), kJ/m3 51
670
Stiffness to Weight: Axial, points 16
13
Stiffness to Weight: Bending, points 55
24
Strength to Weight: Axial, points 20
24
Strength to Weight: Bending, points 28
22
Thermal Diffusivity, mm2/s 61
11
Thermal Shock Resistance, points 8.4
20

Alloy Composition


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Aluminum (Al), % 87.1 to 90
0
Carbon (C), % 0
0.15 to 0.2
Chromium (Cr), % 0
1.2 to 1.5
Copper (Cu), % 0 to 0.050
0 to 0.3
Iron (Fe), % 0 to 0.19
94.7 to 97.1
Magnesium (Mg), % 0 to 0.45
0
Manganese (Mn), % 0 to 0.1
0.5 to 0.9
Molybdenum (Mo), % 0
0.9 to 1.1
Nickel (Ni), % 0
0 to 0.4
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 10 to 11.8
0 to 0.6
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0 to 0.15
0
Vanadium (V), % 0
0.2 to 0.3
Zinc (Zn), % 0 to 0.070
0
Residuals, % 0 to 0.1
0