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A380.0 Aluminum vs. EN 1.7729 Steel

A380.0 aluminum belongs to the aluminum alloys classification, while EN 1.7729 steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (4, 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 A380.0 aluminum and the bottom bar is EN 1.7729 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
270
Elastic (Young's, Tensile) Modulus, GPa 73
190
Elongation at Break, % 3.3
17
Fatigue Strength, MPa 140
500
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
73
Shear Strength, MPa 190
560
Tensile Strength: Ultimate (UTS), MPa 290
910
Tensile Strength: Yield (Proof), MPa 160
750

Thermal Properties

Latent Heat of Fusion, J/g 510
250
Maximum Temperature: Mechanical, °C 170
430
Melting Completion (Liquidus), °C 590
1470
Melting Onset (Solidus), °C 550
1430
Specific Heat Capacity, J/kg-K 870
470
Thermal Conductivity, W/m-K 96
40
Thermal Expansion, µm/m-K 22
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 78
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 11
3.8
Density, g/cm3 2.9
7.8
Embodied Carbon, kg CO2/kg material 7.5
3.3
Embodied Energy, MJ/kg 140
49
Embodied Water, L/kg 1040
59

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.3
150
Resilience: Unit (Modulus of Resilience), kJ/m3 180
1500
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 48
24
Strength to Weight: Axial, points 28
32
Strength to Weight: Bending, points 34
27
Thermal Diffusivity, mm2/s 38
11
Thermal Shock Resistance, points 13
27

Alloy Composition

Aluminum (Al), % 80.3 to 89.5
0.015 to 0.080
Arsenic (As), % 0
0 to 0.020
Boron (B), % 0
0.0010 to 0.010
Carbon (C), % 0
0.17 to 0.23
Chromium (Cr), % 0
0.9 to 1.2
Copper (Cu), % 3.0 to 4.0
0 to 0.2
Iron (Fe), % 0 to 1.3
94.8 to 97
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.5
0.35 to 0.75
Molybdenum (Mo), % 0
0.9 to 1.1
Nickel (Ni), % 0 to 0.5
0 to 0.2
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 7.5 to 9.5
0 to 0.4
Sulfur (S), % 0
0 to 0.015
Tin (Sn), % 0 to 0.35
0 to 0.020
Titanium (Ti), % 0
0.070 to 0.15
Vanadium (V), % 0
0.6 to 0.8
Zinc (Zn), % 0 to 3.0
0
Residuals, % 0 to 0.5
0