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ASTM A369 Grade FP11 vs. 2218 Aluminum

ASTM A369 grade FP11 belongs to the iron alloys classification, while 2218 aluminum belongs to the aluminum alloys. There are 31 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 ASTM A369 grade FP11 and the bottom bar is 2218 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
95 to 110
Elastic (Young's, Tensile) Modulus, GPa 190
73
Elongation at Break, % 20
6.8 to 10
Fatigue Strength, MPa 160
110
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
27
Shear Strength, MPa 300
210 to 250
Tensile Strength: Ultimate (UTS), MPa 470
330 to 430
Tensile Strength: Yield (Proof), MPa 240
260 to 310

Thermal Properties

Latent Heat of Fusion, J/g 260
390
Maximum Temperature: Mechanical, °C 430
220
Melting Completion (Liquidus), °C 1460
640
Melting Onset (Solidus), °C 1420
510
Specific Heat Capacity, J/kg-K 470
870
Thermal Conductivity, W/m-K 40
140
Thermal Expansion, µm/m-K 13
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
37
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
110

Otherwise Unclassified Properties

Base Metal Price, % relative 2.9
11
Density, g/cm3 7.8
3.1
Embodied Carbon, kg CO2/kg material 1.6
8.2
Embodied Energy, MJ/kg 21
150
Embodied Water, L/kg 52
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
27 to 31
Resilience: Unit (Modulus of Resilience), kJ/m3 150
450 to 650
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
45
Strength to Weight: Axial, points 17
30 to 39
Strength to Weight: Bending, points 17
34 to 41
Thermal Diffusivity, mm2/s 11
52
Thermal Shock Resistance, points 14
15 to 19

Alloy Composition

Aluminum (Al), % 0
88.8 to 93.6
Carbon (C), % 0.050 to 0.15
0
Chromium (Cr), % 1.0 to 1.5
0 to 0.1
Copper (Cu), % 0
3.5 to 4.5
Iron (Fe), % 96.1 to 97.7
0 to 1.0
Magnesium (Mg), % 0
1.2 to 1.8
Manganese (Mn), % 0.3 to 0.6
0 to 0.2
Molybdenum (Mo), % 0.44 to 0.65
0
Nickel (Ni), % 0
1.7 to 2.3
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0.5 to 1.0
0 to 0.9
Sulfur (S), % 0 to 0.025
0
Zinc (Zn), % 0
0 to 0.25
Residuals, % 0
0 to 0.15