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ASTM A369 Grade FP9 vs. SAE-AISI F2 Steel

Both ASTM A369 grade FP9 and SAE-AISI F2 steel are iron alloys. They have 90% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is ASTM A369 grade FP9 and the bottom bar is SAE-AISI F2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
73
Tensile Strength: Ultimate (UTS), MPa 470
710 to 2360

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Melting Completion (Liquidus), °C 1450
1520
Melting Onset (Solidus), °C 1410
1470
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 26
42
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.0
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 10
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
10
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 2.0
2.3
Embodied Energy, MJ/kg 28
32
Embodied Water, L/kg 87
50

Common Calculations

PREN (Pitting Resistance) 12
6.5
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 17
24 to 81
Strength to Weight: Bending, points 17
22 to 49
Thermal Diffusivity, mm2/s 6.9
11
Thermal Shock Resistance, points 13
21 to 71

Alloy Composition

Carbon (C), % 0 to 0.15
1.2 to 1.4
Chromium (Cr), % 8.0 to 10
0.2 to 0.4
Iron (Fe), % 87.1 to 90.3
92.6 to 95.4
Manganese (Mn), % 0.3 to 0.6
0.1 to 0.5
Molybdenum (Mo), % 0.9 to 1.1
0
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0.5 to 1.0
0.1 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0
3.0 to 4.5