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A380.0 Aluminum vs. EN 1.4469 Stainless Steel

A380.0 aluminum belongs to the aluminum alloys classification, while EN 1.4469 stainless steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (6, 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 1.4469 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
210
Elongation at Break, % 3.3
25
Fatigue Strength, MPa 140
380
Poisson's Ratio 0.33
0.27
Shear Modulus, GPa 27
81
Tensile Strength: Ultimate (UTS), MPa 290
740
Tensile Strength: Yield (Proof), MPa 160
550

Thermal Properties

Latent Heat of Fusion, J/g 510
300
Maximum Temperature: Mechanical, °C 170
1100
Melting Completion (Liquidus), °C 590
1450
Melting Onset (Solidus), °C 550
1400
Specific Heat Capacity, J/kg-K 870
480
Thermal Conductivity, W/m-K 96
17
Thermal Expansion, µm/m-K 22
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 78
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 11
21
Density, g/cm3 2.9
7.8
Embodied Carbon, kg CO2/kg material 7.5
4.1
Embodied Energy, MJ/kg 140
57
Embodied Water, L/kg 1040
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.3
170
Resilience: Unit (Modulus of Resilience), kJ/m3 180
730
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 48
25
Strength to Weight: Axial, points 28
26
Strength to Weight: Bending, points 34
23
Thermal Diffusivity, mm2/s 38
4.6
Thermal Shock Resistance, points 13
20

Alloy Composition

Aluminum (Al), % 80.3 to 89.5
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
25 to 27
Copper (Cu), % 3.0 to 4.0
0 to 1.3
Iron (Fe), % 0 to 1.3
56.4 to 65.9
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.5
0 to 1.0
Molybdenum (Mo), % 0
3.0 to 5.0
Nickel (Ni), % 0 to 0.5
6.0 to 8.0
Nitrogen (N), % 0
0.12 to 0.22
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 7.5 to 9.5
0 to 1.0
Sulfur (S), % 0
0 to 0.025
Tin (Sn), % 0 to 0.35
0
Zinc (Zn), % 0 to 3.0
0
Residuals, % 0 to 0.5
0