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SAE-AISI F1 Steel vs. ACI-ASTM CF8M Steel

Both SAE-AISI F1 steel and ACI-ASTM CF8M steel are iron alloys. They have 66% 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 F1 steel and the bottom bar is ACI-ASTM CF8M 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 72
78
Tensile Strength: Ultimate (UTS), MPa 620 to 2320
540

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Melting Completion (Liquidus), °C 1480
1440
Melting Onset (Solidus), °C 1430
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 45
16
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
19
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.7
3.8
Embodied Energy, MJ/kg 24
53
Embodied Water, L/kg 46
160

Common Calculations

PREN (Pitting Resistance) 2.3
28
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 22 to 82
19
Strength to Weight: Bending, points 20 to 49
19
Thermal Diffusivity, mm2/s 12
4.3
Thermal Shock Resistance, points 19 to 70
12

Alloy Composition

Carbon (C), % 1.0 to 1.3
0 to 0.080
Chromium (Cr), % 0
18 to 21
Iron (Fe), % 95.9 to 98
60.3 to 71
Manganese (Mn), % 0 to 0.5
0 to 1.5
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 0
9.0 to 12
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), % 1.0 to 1.8
0