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SAE-AISI F2 Steel vs. ACI-ASTM CH20 Steel

Both SAE-AISI F2 steel and ACI-ASTM CH20 steel are iron alloys. They have 61% 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 ACI-ASTM CH20 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
610

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Melting Completion (Liquidus), °C 1520
1410
Melting Onset (Solidus), °C 1470
1430
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 42
14
Thermal Expansion, µm/m-K 13
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.7
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 10
20
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 2.3
3.7
Embodied Energy, MJ/kg 32
53
Embodied Water, L/kg 50
180

Common Calculations

PREN (Pitting Resistance) 6.5
25
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 24 to 81
22
Strength to Weight: Bending, points 22 to 49
21
Thermal Diffusivity, mm2/s 11
3.7
Thermal Shock Resistance, points 21 to 71
15

Alloy Composition

Carbon (C), % 1.2 to 1.4
0 to 0.2
Chromium (Cr), % 0.2 to 0.4
22 to 26
Iron (Fe), % 92.6 to 95.4
54.7 to 66
Manganese (Mn), % 0.1 to 0.5
0 to 1.5
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
12 to 15
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.1 to 0.5
0 to 2.0
Sulfur (S), % 0 to 0.030
0 to 0.040
Tungsten (W), % 3.0 to 4.5
0