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ASTM A369 Grade FP91 vs. 5457 Aluminum

ASTM A369 grade FP91 belongs to the iron alloys classification, while 5457 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 FP91 and the bottom bar is 5457 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
32 to 55
Elastic (Young's, Tensile) Modulus, GPa 190
68
Elongation at Break, % 19
6.0 to 22
Fatigue Strength, MPa 320
55 to 98
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 75
26
Shear Strength, MPa 410
85 to 130
Tensile Strength: Ultimate (UTS), MPa 670
130 to 210
Tensile Strength: Yield (Proof), MPa 460
50 to 190

Thermal Properties

Latent Heat of Fusion, J/g 270
400
Maximum Temperature: Mechanical, °C 600
180
Melting Completion (Liquidus), °C 1460
660
Melting Onset (Solidus), °C 1420
630
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 26
180
Thermal Expansion, µm/m-K 13
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.9
46
Electrical Conductivity: Equal Weight (Specific), % IACS 10
150

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
9.5
Density, g/cm3 7.8
2.7
Embodied Carbon, kg CO2/kg material 2.6
8.4
Embodied Energy, MJ/kg 37
160
Embodied Water, L/kg 88
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
12 to 23
Resilience: Unit (Modulus of Resilience), kJ/m3 560
18 to 250
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
50
Strength to Weight: Axial, points 24
13 to 21
Strength to Weight: Bending, points 22
21 to 28
Thermal Diffusivity, mm2/s 6.9
72
Thermal Shock Resistance, points 18
5.7 to 9.0

Alloy Composition

Aluminum (Al), % 0 to 0.020
97.8 to 99.05
Carbon (C), % 0.080 to 0.12
0
Chromium (Cr), % 8.0 to 9.5
0
Copper (Cu), % 0
0 to 0.2
Iron (Fe), % 87.3 to 90.3
0 to 0.1
Magnesium (Mg), % 0
0.8 to 1.2
Manganese (Mn), % 0.3 to 0.6
0.15 to 0.45
Molybdenum (Mo), % 0.85 to 1.1
0
Nickel (Ni), % 0 to 0.4
0
Niobium (Nb), % 0.060 to 0.1
0
Nitrogen (N), % 0.030 to 0.070
0
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0.2 to 0.5
0 to 0.080
Sulfur (S), % 0 to 0.025
0
Titanium (Ti), % 0 to 0.010
0
Vanadium (V), % 0.18 to 0.25
0 to 0.050
Zinc (Zn), % 0
0 to 0.050
Zirconium (Zr), % 0 to 0.010
0
Residuals, % 0
0 to 0.1