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SAE-AISI 5120 Steel vs. SAE-AISI F2 Steel

Both SAE-AISI 5120 steel and SAE-AISI F2 steel are iron alloys. They have a very high 95% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 5120 steel 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 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 500
710 to 2360

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Melting Completion (Liquidus), °C 1460
1520
Melting Onset (Solidus), °C 1420
1470
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 47
42
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
10
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 1.4
2.3
Embodied Energy, MJ/kg 19
32
Embodied Water, L/kg 49
50

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 18
24 to 81
Strength to Weight: Bending, points 18
22 to 49
Thermal Diffusivity, mm2/s 13
11
Thermal Shock Resistance, points 16
21 to 71

Alloy Composition

Carbon (C), % 0.17 to 0.22
1.2 to 1.4
Chromium (Cr), % 0.7 to 0.9
0.2 to 0.4
Iron (Fe), % 97.6 to 98.3
92.6 to 95.4
Manganese (Mn), % 0.7 to 0.9
0.1 to 0.5
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0.15 to 0.35
0.1 to 0.5
Sulfur (S), % 0 to 0.040
0 to 0.030
Tungsten (W), % 0
3.0 to 4.5