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SAE-AISI F2 Steel vs. AISI 309S Stainless Steel

Both SAE-AISI F2 steel and AISI 309S stainless steel are iron alloys. They have 63% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI F2 steel and the bottom bar is AISI 309S stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
78
Tensile Strength: Ultimate (UTS), MPa 710 to 2360
580

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Melting Completion (Liquidus), °C 1520
1420
Melting Onset (Solidus), °C 1470
1370
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 42
15
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.7
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 10
19
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 2.3
3.6
Embodied Energy, MJ/kg 32
51
Embodied Water, L/kg 50
170

Common Calculations

PREN (Pitting Resistance) 6.5
23
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 24 to 81
21
Strength to Weight: Bending, points 22 to 49
20
Thermal Diffusivity, mm2/s 11
4.0
Thermal Shock Resistance, points 21 to 71
13

Alloy Composition

Carbon (C), % 1.2 to 1.4
0 to 0.080
Chromium (Cr), % 0.2 to 0.4
22 to 24
Iron (Fe), % 92.6 to 95.4
58.1 to 66
Manganese (Mn), % 0.1 to 0.5
0 to 2.0
Nickel (Ni), % 0
12 to 15
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0.1 to 0.5
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 3.0 to 4.5
0