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ASTM A369 Grade FP91 vs. 1050A Aluminum

ASTM A369 grade FP91 belongs to the iron alloys classification, while 1050A 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 1050A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
20 to 45
Elastic (Young's, Tensile) Modulus, GPa 190
68
Elongation at Break, % 19
1.1 to 33
Fatigue Strength, MPa 320
22 to 55
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 75
26
Shear Strength, MPa 410
44 to 97
Tensile Strength: Ultimate (UTS), MPa 670
68 to 170
Tensile Strength: Yield (Proof), MPa 460
22 to 150

Thermal Properties

Latent Heat of Fusion, J/g 270
400
Maximum Temperature: Mechanical, °C 600
170
Melting Completion (Liquidus), °C 1460
660
Melting Onset (Solidus), °C 1420
650
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 26
230
Thermal Expansion, µm/m-K 13
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.9
59
Electrical Conductivity: Equal Weight (Specific), % IACS 10
200

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
9.0
Density, g/cm3 7.8
2.7
Embodied Carbon, kg CO2/kg material 2.6
8.2
Embodied Energy, MJ/kg 37
150
Embodied Water, L/kg 88
1200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
1.9 to 19
Resilience: Unit (Modulus of Resilience), kJ/m3 560
3.7 to 160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
50
Strength to Weight: Axial, points 24
6.9 to 18
Strength to Weight: Bending, points 22
14 to 25
Thermal Diffusivity, mm2/s 6.9
94
Thermal Shock Resistance, points 18
3.0 to 7.6

Alloy Composition

Aluminum (Al), % 0 to 0.020
99.5 to 100
Carbon (C), % 0.080 to 0.12
0
Chromium (Cr), % 8.0 to 9.5
0
Copper (Cu), % 0
0 to 0.050
Iron (Fe), % 87.3 to 90.3
0 to 0.4
Magnesium (Mg), % 0
0 to 0.050
Manganese (Mn), % 0.3 to 0.6
0 to 0.050
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 0.25
Sulfur (S), % 0 to 0.025
0
Titanium (Ti), % 0 to 0.010
0 to 0.050
Vanadium (V), % 0.18 to 0.25
0
Zinc (Zn), % 0
0 to 0.070
Zirconium (Zr), % 0 to 0.010
0