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ASTM A369 Grade FPB vs. 5252 Aluminum

ASTM A369 grade FPB belongs to the iron alloys classification, while 5252 aluminum belongs to the aluminum alloys. 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 FPB and the bottom bar is 5252 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
68 to 75
Elastic (Young's, Tensile) Modulus, GPa 190
68
Elongation at Break, % 19
4.5 to 11
Fatigue Strength, MPa 180
100 to 110
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
25
Shear Strength, MPa 290
140 to 160
Tensile Strength: Ultimate (UTS), MPa 470
230 to 290
Tensile Strength: Yield (Proof), MPa 270
170 to 240

Thermal Properties

Latent Heat of Fusion, J/g 250
400
Maximum Temperature: Mechanical, °C 400
180
Melting Completion (Liquidus), °C 1460
650
Melting Onset (Solidus), °C 1420
610
Specific Heat Capacity, J/kg-K 470
910
Thermal Conductivity, W/m-K 52
140
Thermal Expansion, µm/m-K 12
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
34
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
120

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
9.5
Density, g/cm3 7.8
2.7
Embodied Carbon, kg CO2/kg material 1.4
8.7
Embodied Energy, MJ/kg 18
160
Embodied Water, L/kg 46
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 78
12 to 23
Resilience: Unit (Modulus of Resilience), kJ/m3 190
210 to 430
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
51
Strength to Weight: Axial, points 17
23 to 30
Strength to Weight: Bending, points 17
31 to 36
Thermal Diffusivity, mm2/s 14
57
Thermal Shock Resistance, points 15
10 to 13

Alloy Composition

Aluminum (Al), % 0
96.6 to 97.8
Carbon (C), % 0 to 0.3
0
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 98.1 to 99.61
0 to 0.1
Magnesium (Mg), % 0
2.2 to 2.8
Manganese (Mn), % 0.29 to 1.1
0 to 0.1
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0.1 to 0.5
0 to 0.080
Sulfur (S), % 0 to 0.035
0
Vanadium (V), % 0
0 to 0.050
Zinc (Zn), % 0
0 to 0.050
Residuals, % 0
0 to 0.1