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ASTM A369 Grade FP9 vs. 5456 Aluminum

ASTM A369 grade FP9 belongs to the iron alloys classification, while 5456 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, 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 5456 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
68
Elongation at Break, % 20
11 to 18
Fatigue Strength, MPa 160
130 to 210
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 75
26
Shear Strength, MPa 300
190 to 210
Tensile Strength: Ultimate (UTS), MPa 470
320 to 340
Tensile Strength: Yield (Proof), MPa 240
150 to 250

Thermal Properties

Latent Heat of Fusion, J/g 270
390
Maximum Temperature: Mechanical, °C 600
190
Melting Completion (Liquidus), °C 1450
640
Melting Onset (Solidus), °C 1410
570
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
97

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
1170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
33 to 46
Resilience: Unit (Modulus of Resilience), kJ/m3 140
170 to 470
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
50
Strength to Weight: Axial, points 17
33 to 35
Strength to Weight: Bending, points 17
38 to 40
Thermal Diffusivity, mm2/s 6.9
48
Thermal Shock Resistance, points 13
14 to 15

Alloy Composition

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