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SAE-AISI F2 Steel vs. ASTM A387 Grade 9 Steel

Both SAE-AISI F2 steel and ASTM A387 grade 9 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 SAE-AISI F2 steel and the bottom bar is ASTM A387 grade 9 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
75
Tensile Strength: Ultimate (UTS), MPa 710 to 2360
500 to 600

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Melting Completion (Liquidus), °C 1520
1460
Melting Onset (Solidus), °C 1470
1410
Specific Heat Capacity, J/kg-K 460
470
Thermal Conductivity, W/m-K 42
26
Thermal Expansion, µm/m-K 13
13

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 10
6.5
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 2.3
2.1
Embodied Energy, MJ/kg 32
28
Embodied Water, L/kg 50
87

Common Calculations

PREN (Pitting Resistance) 6.5
12
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 24 to 81
18 to 21
Strength to Weight: Bending, points 22 to 49
18 to 20
Thermal Diffusivity, mm2/s 11
6.9
Thermal Shock Resistance, points 21 to 71
14 to 17

Alloy Composition

Carbon (C), % 1.2 to 1.4
0 to 0.15
Chromium (Cr), % 0.2 to 0.4
8.0 to 10
Iron (Fe), % 92.6 to 95.4
87.1 to 90.8
Manganese (Mn), % 0.1 to 0.5
0.3 to 0.6
Molybdenum (Mo), % 0
0.9 to 1.1
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0.1 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.025
Tungsten (W), % 3.0 to 4.5
0
Vanadium (V), % 0
0 to 0.040

Comparable Variants