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SAE-AISI F2 Steel vs. ACI-ASTM CG8M Steel

Both SAE-AISI F2 steel and ACI-ASTM CG8M steel are iron alloys. They have 65% of their average alloy composition in common. There are 24 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 F2 steel and the bottom bar is ACI-ASTM CG8M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
79
Tensile Strength: Ultimate (UTS), MPa 710 to 2360
550

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Melting Completion (Liquidus), °C 1520
1450
Melting Onset (Solidus), °C 1470
1400
Specific Heat Capacity, J/kg-K 460
470
Thermal Conductivity, W/m-K 42
16
Thermal Expansion, µm/m-K 13
16

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
7.9
Embodied Carbon, kg CO2/kg material 2.3
4.1
Embodied Energy, MJ/kg 32
56
Embodied Water, L/kg 50
160

Common Calculations

PREN (Pitting Resistance) 6.5
31
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 24 to 81
19
Strength to Weight: Bending, points 22 to 49
19
Thermal Diffusivity, mm2/s 11
4.3
Thermal Shock Resistance, points 21 to 71
12

Alloy Composition

Carbon (C), % 1.2 to 1.4
0 to 0.080
Chromium (Cr), % 0.2 to 0.4
18 to 21
Iron (Fe), % 92.6 to 95.4
58.8 to 70
Manganese (Mn), % 0.1 to 0.5
0 to 1.5
Molybdenum (Mo), % 0
3.0 to 4.0
Nickel (Ni), % 0
9.0 to 13
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.1 to 0.5
0 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.040
Tungsten (W), % 3.0 to 4.5
0