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2219 Aluminum vs. ASTM A414 Steel

2219 aluminum belongs to the aluminum alloys classification, while ASTM A414 steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (1, 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 ASTM A414 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
190
Elongation at Break, % 2.2 to 20
15 to 26
Fatigue Strength, MPa 90 to 130
140 to 260
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
73
Shear Strength, MPa 110 to 280
230 to 370
Tensile Strength: Ultimate (UTS), MPa 180 to 480
360 to 590
Tensile Strength: Yield (Proof), MPa 88 to 390
190 to 350

Thermal Properties

Latent Heat of Fusion, J/g 390
250
Maximum Temperature: Mechanical, °C 230
400
Melting Completion (Liquidus), °C 640
1460
Melting Onset (Solidus), °C 540
1420
Specific Heat Capacity, J/kg-K 870
470
Thermal Conductivity, W/m-K 110 to 170
49 to 50
Thermal Expansion, µm/m-K 22
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28 to 44
7.2 to 7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 81 to 130
8.3 to 8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 11
2.2
Density, g/cm3 3.1
7.8 to 7.9
Embodied Carbon, kg CO2/kg material 8.2
1.5 to 1.6
Embodied Energy, MJ/kg 150
20 to 22
Embodied Water, L/kg 1130
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 9.6 to 60
69 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 54 to 1060
100 to 330
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 44
24
Strength to Weight: Axial, points 16 to 43
13 to 21
Strength to Weight: Bending, points 23 to 44
14 to 20
Thermal Diffusivity, mm2/s 42 to 63
13
Thermal Shock Resistance, points 8.2 to 22
11 to 17