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2219 Aluminum vs. EN 1.4659 Stainless Steel

2219 aluminum belongs to the aluminum alloys classification, while EN 1.4659 stainless steel belongs to the iron alloys. There are 30 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 2219 aluminum and the bottom bar is EN 1.4659 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
210
Elongation at Break, % 2.2 to 20
49
Fatigue Strength, MPa 90 to 130
460
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
81
Shear Strength, MPa 110 to 280
640
Tensile Strength: Ultimate (UTS), MPa 180 to 480
900
Tensile Strength: Yield (Proof), MPa 88 to 390
480

Thermal Properties

Latent Heat of Fusion, J/g 390
300
Maximum Temperature: Mechanical, °C 230
1100
Melting Completion (Liquidus), °C 640
1480
Melting Onset (Solidus), °C 540
1430
Specific Heat Capacity, J/kg-K 870
460
Thermal Conductivity, W/m-K 110 to 170
12
Thermal Expansion, µm/m-K 22
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28 to 44
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 81 to 130
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 11
37
Density, g/cm3 3.1
8.2
Embodied Carbon, kg CO2/kg material 8.2
6.5
Embodied Energy, MJ/kg 150
89
Embodied Water, L/kg 1130
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 9.6 to 60
370
Resilience: Unit (Modulus of Resilience), kJ/m3 54 to 1060
550
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 44
24
Strength to Weight: Axial, points 16 to 43
31
Strength to Weight: Bending, points 23 to 44
25
Thermal Diffusivity, mm2/s 42 to 63
3.2
Thermal Shock Resistance, points 8.2 to 22
19

Alloy Composition

Aluminum (Al), % 91.5 to 93.8
0
Carbon (C), % 0
0 to 0.020
Chromium (Cr), % 0
23 to 25
Copper (Cu), % 5.8 to 6.8
1.0 to 2.0
Iron (Fe), % 0 to 0.3
35.7 to 45.7
Magnesium (Mg), % 0 to 0.020
0
Manganese (Mn), % 0.2 to 0.4
2.0 to 4.0
Molybdenum (Mo), % 0
5.5 to 6.5
Nickel (Ni), % 0
21 to 23
Nitrogen (N), % 0
0.35 to 0.5
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.2
0 to 0.7
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0.020 to 0.1
0
Tungsten (W), % 0
1.5 to 2.5
Vanadium (V), % 0.050 to 0.15
0
Zinc (Zn), % 0 to 0.1
0
Zirconium (Zr), % 0.1 to 0.25
0
Residuals, % 0 to 0.15
0