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2219 Aluminum vs. ASTM A387 Grade 21L Class 1

2219 aluminum belongs to the aluminum alloys classification, while ASTM A387 grade 21L class 1 belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, 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 A387 grade 21L class 1.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
190
Elongation at Break, % 2.2 to 20
21
Fatigue Strength, MPa 90 to 130
160
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
74
Shear Strength, MPa 110 to 280
310
Tensile Strength: Ultimate (UTS), MPa 180 to 480
500
Tensile Strength: Yield (Proof), MPa 88 to 390
230

Thermal Properties

Latent Heat of Fusion, J/g 390
260
Maximum Temperature: Mechanical, °C 230
480
Melting Completion (Liquidus), °C 640
1470
Melting Onset (Solidus), °C 540
1430
Specific Heat Capacity, J/kg-K 870
470
Thermal Conductivity, W/m-K 110 to 170
41
Thermal Expansion, µm/m-K 22
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28 to 44
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 81 to 130
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 11
4.1
Density, g/cm3 3.1
7.9
Embodied Carbon, kg CO2/kg material 8.2
1.8
Embodied Energy, MJ/kg 150
23
Embodied Water, L/kg 1130
62

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 9.6 to 60
84
Resilience: Unit (Modulus of Resilience), kJ/m3 54 to 1060
140
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 44
24
Strength to Weight: Axial, points 16 to 43
18
Strength to Weight: Bending, points 23 to 44
18
Thermal Diffusivity, mm2/s 42 to 63
11
Thermal Shock Resistance, points 8.2 to 22
14

Alloy Composition

Aluminum (Al), % 91.5 to 93.8
0
Carbon (C), % 0
0 to 0.1
Chromium (Cr), % 0
2.8 to 3.3
Copper (Cu), % 5.8 to 6.8
0
Iron (Fe), % 0 to 0.3
94.4 to 96.1
Magnesium (Mg), % 0 to 0.020
0
Manganese (Mn), % 0.2 to 0.4
0.3 to 0.6
Molybdenum (Mo), % 0
0.9 to 1.1
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.2
0 to 0.5
Sulfur (S), % 0
0 to 0.025
Titanium (Ti), % 0.020 to 0.1
0
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