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SAE-AISI F1 Steel vs. S44800 Stainless Steel

Both SAE-AISI F1 steel and S44800 stainless 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 (11, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI F1 steel and the bottom bar is S44800 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 72
82
Tensile Strength: Ultimate (UTS), MPa 620 to 2320
590

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Melting Completion (Liquidus), °C 1480
1460
Melting Onset (Solidus), °C 1430
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 45
17
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
3.0

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
52
Embodied Water, L/kg 46
190

Common Calculations

PREN (Pitting Resistance) 2.3
42
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 22 to 82
21
Strength to Weight: Bending, points 20 to 49
20
Thermal Diffusivity, mm2/s 12
4.6
Thermal Shock Resistance, points 19 to 70
19

Alloy Composition

Carbon (C), % 1.0 to 1.3
0 to 0.010
Chromium (Cr), % 0
28 to 30
Copper (Cu), % 0
0 to 0.15
Iron (Fe), % 95.9 to 98
62.6 to 66.5
Manganese (Mn), % 0 to 0.5
0 to 0.3
Molybdenum (Mo), % 0
3.5 to 4.2
Nickel (Ni), % 0
2.0 to 2.5
Nitrogen (N), % 0
0 to 0.020
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0.1 to 0.5
0 to 0.2
Sulfur (S), % 0 to 0.030
0 to 0.020
Tungsten (W), % 1.0 to 1.8
0