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2219 Aluminum vs. EN 1.4876 Stainless Steel

2219 aluminum belongs to the aluminum alloys classification, while EN 1.4876 stainless 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 2219 aluminum and the bottom bar is EN 1.4876 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
200
Elongation at Break, % 2.2 to 20
33
Fatigue Strength, MPa 90 to 130
150
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
77
Shear Strength, MPa 110 to 280
370
Tensile Strength: Ultimate (UTS), MPa 180 to 480
570
Tensile Strength: Yield (Proof), MPa 88 to 390
190

Thermal Properties

Latent Heat of Fusion, J/g 390
300
Maximum Temperature: Mechanical, °C 230
1100
Melting Completion (Liquidus), °C 640
1400
Melting Onset (Solidus), °C 540
1350
Specific Heat Capacity, J/kg-K 870
480
Thermal Conductivity, W/m-K 110 to 170
12
Thermal Expansion, µm/m-K 22
14

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
30
Density, g/cm3 3.1
8.0
Embodied Carbon, kg CO2/kg material 8.2
5.3
Embodied Energy, MJ/kg 150
76
Embodied Water, L/kg 1130
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 9.6 to 60
140
Resilience: Unit (Modulus of Resilience), kJ/m3 54 to 1060
94
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 44
24
Strength to Weight: Axial, points 16 to 43
20
Strength to Weight: Bending, points 23 to 44
19
Thermal Diffusivity, mm2/s 42 to 63
3.2
Thermal Shock Resistance, points 8.2 to 22
14

Alloy Composition

Aluminum (Al), % 91.5 to 93.8
0.15 to 0.6
Carbon (C), % 0
0 to 0.12
Chromium (Cr), % 0
19 to 23
Copper (Cu), % 5.8 to 6.8
0
Iron (Fe), % 0 to 0.3
38.6 to 50.7
Magnesium (Mg), % 0 to 0.020
0
Manganese (Mn), % 0.2 to 0.4
0 to 2.0
Nickel (Ni), % 0
30 to 34
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.2
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0.020 to 0.1
0.15 to 0.6
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