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ASTM A369 Grade FP9 vs. 5088 Aluminum

ASTM A369 grade FP9 belongs to the iron alloys classification, while 5088 aluminum belongs to the aluminum 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 ASTM A369 grade FP9 and the bottom bar is 5088 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
68
Elongation at Break, % 20
29
Fatigue Strength, MPa 160
180
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 75
25
Shear Strength, MPa 300
200
Tensile Strength: Ultimate (UTS), MPa 470
310
Tensile Strength: Yield (Proof), MPa 240
150

Thermal Properties

Latent Heat of Fusion, J/g 270
390
Maximum Temperature: Mechanical, °C 600
200
Melting Completion (Liquidus), °C 1450
640
Melting Onset (Solidus), °C 1410
540
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 26
120
Thermal Expansion, µm/m-K 13
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.0
29
Electrical Conductivity: Equal Weight (Specific), % IACS 10
98

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
9.5
Density, g/cm3 7.8
2.7
Embodied Carbon, kg CO2/kg material 2.0
9.0
Embodied Energy, MJ/kg 28
150
Embodied Water, L/kg 87
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
76
Resilience: Unit (Modulus of Resilience), kJ/m3 140
170
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
50
Strength to Weight: Axial, points 17
32
Strength to Weight: Bending, points 17
38
Thermal Diffusivity, mm2/s 6.9
51
Thermal Shock Resistance, points 13
14

Alloy Composition

Aluminum (Al), % 0
92.4 to 94.8
Carbon (C), % 0 to 0.15
0
Chromium (Cr), % 8.0 to 10
0 to 0.15
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 87.1 to 90.3
0.1 to 0.35
Magnesium (Mg), % 0
4.7 to 5.5
Manganese (Mn), % 0.3 to 0.6
0.2 to 0.5
Molybdenum (Mo), % 0.9 to 1.1
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.5 to 1.0
0 to 0.2
Sulfur (S), % 0 to 0.030
0
Zinc (Zn), % 0
0.2 to 0.4
Zirconium (Zr), % 0
0 to 0.15
Residuals, % 0
0 to 0.15