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ASTM A369 Grade FP92 vs. 2218 Aluminum

ASTM A369 grade FP92 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 FP92 and the bottom bar is 2218 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
95 to 110
Elastic (Young's, Tensile) Modulus, GPa 190
73
Elongation at Break, % 19
6.8 to 10
Fatigue Strength, MPa 330
110
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 76
27
Shear Strength, MPa 440
210 to 250
Tensile Strength: Ultimate (UTS), MPa 710
330 to 430
Tensile Strength: Yield (Proof), MPa 490
260 to 310

Thermal Properties

Latent Heat of Fusion, J/g 260
390
Maximum Temperature: Mechanical, °C 590
220
Melting Completion (Liquidus), °C 1490
640
Melting Onset (Solidus), °C 1450
510
Specific Heat Capacity, J/kg-K 470
870
Thermal Conductivity, W/m-K 26
140
Thermal Expansion, µm/m-K 13
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.3
37
Electrical Conductivity: Equal Weight (Specific), % IACS 10
110

Otherwise Unclassified Properties

Base Metal Price, % relative 11
11
Density, g/cm3 7.9
3.1
Embodied Carbon, kg CO2/kg material 2.8
8.2
Embodied Energy, MJ/kg 40
150
Embodied Water, L/kg 89
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
27 to 31
Resilience: Unit (Modulus of Resilience), kJ/m3 620
450 to 650
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
45
Strength to Weight: Axial, points 25
30 to 39
Strength to Weight: Bending, points 22
34 to 41
Thermal Diffusivity, mm2/s 6.9
52
Thermal Shock Resistance, points 19
15 to 19

Alloy Composition

Aluminum (Al), % 0 to 0.020
88.8 to 93.6
Boron (B), % 0.0010 to 0.0060
0
Carbon (C), % 0.070 to 0.13
0
Chromium (Cr), % 8.5 to 9.5
0 to 0.1
Copper (Cu), % 0
3.5 to 4.5
Iron (Fe), % 85.8 to 89.1
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), % 0.3 to 0.6
0
Nickel (Ni), % 0 to 0.4
1.7 to 2.3
Niobium (Nb), % 0.040 to 0.090
0
Nitrogen (N), % 0.030 to 0.070
0
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0 to 0.5
0 to 0.9
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 0 to 0.010
0
Tungsten (W), % 1.5 to 2.0
0
Vanadium (V), % 0.15 to 0.25
0
Zinc (Zn), % 0
0 to 0.25
Zirconium (Zr), % 0 to 0.010
0
Residuals, % 0
0 to 0.15