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ASTM A369 Grade FP91 vs. 4032 Aluminum

ASTM A369 grade FP91 belongs to the iron alloys classification, while 4032 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 4032 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
120
Elastic (Young's, Tensile) Modulus, GPa 190
73
Elongation at Break, % 19
6.7
Fatigue Strength, MPa 320
110
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 75
28
Shear Strength, MPa 410
260
Tensile Strength: Ultimate (UTS), MPa 670
390
Tensile Strength: Yield (Proof), MPa 460
320

Thermal Properties

Latent Heat of Fusion, J/g 270
570
Maximum Temperature: Mechanical, °C 600
180
Melting Completion (Liquidus), °C 1460
570
Melting Onset (Solidus), °C 1420
530
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 26
140
Thermal Expansion, µm/m-K 13
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.9
34
Electrical Conductivity: Equal Weight (Specific), % IACS 10
120

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
10
Density, g/cm3 7.8
2.6
Embodied Carbon, kg CO2/kg material 2.6
7.8
Embodied Energy, MJ/kg 37
140
Embodied Water, L/kg 88
1030

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
25
Resilience: Unit (Modulus of Resilience), kJ/m3 560
700
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
53
Strength to Weight: Axial, points 24
41
Strength to Weight: Bending, points 22
45
Thermal Diffusivity, mm2/s 6.9
59
Thermal Shock Resistance, points 18
20

Alloy Composition

Aluminum (Al), % 0 to 0.020
81.1 to 87.2
Carbon (C), % 0.080 to 0.12
0
Chromium (Cr), % 8.0 to 9.5
0 to 0.1
Copper (Cu), % 0
0.5 to 1.3
Iron (Fe), % 87.3 to 90.3
0 to 1.0
Magnesium (Mg), % 0
0.8 to 1.3
Manganese (Mn), % 0.3 to 0.6
0
Molybdenum (Mo), % 0.85 to 1.1
0
Nickel (Ni), % 0 to 0.4
0.5 to 1.3
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
11 to 13.5
Sulfur (S), % 0 to 0.025
0
Titanium (Ti), % 0 to 0.010
0
Vanadium (V), % 0.18 to 0.25
0
Zinc (Zn), % 0
0 to 0.25
Zirconium (Zr), % 0 to 0.010
0
Residuals, % 0
0 to 0.15