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SAE-AISI F1 Steel vs. AISI 439 Stainless Steel

Both SAE-AISI F1 steel and AISI 439 stainless steel are iron alloys. They have 81% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI F1 steel and the bottom bar is AISI 439 stainless 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
77
Tensile Strength: Ultimate (UTS), MPa 620 to 2320
490

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Melting Completion (Liquidus), °C 1480
1510
Melting Onset (Solidus), °C 1430
1430
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 45
25
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
3.4

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
9.0
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 1.7
2.3
Embodied Energy, MJ/kg 24
34
Embodied Water, L/kg 46
120

Common Calculations

PREN (Pitting Resistance) 2.3
18
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 22 to 82
18
Strength to Weight: Bending, points 20 to 49
18
Thermal Diffusivity, mm2/s 12
6.7
Thermal Shock Resistance, points 19 to 70
16

Alloy Composition

Aluminum (Al), % 0
0 to 0.15
Carbon (C), % 1.0 to 1.3
0 to 0.030
Chromium (Cr), % 0
17 to 19
Iron (Fe), % 95.9 to 98
77.1 to 82.8
Manganese (Mn), % 0 to 0.5
0 to 1.0
Nickel (Ni), % 0
0 to 0.5
Nitrogen (N), % 0
0 to 0.030
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.1 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0
0.2 to 1.1
Tungsten (W), % 1.0 to 1.8
0