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AISI 430FSe Stainless Steel vs. S39277 Stainless Steel

Both AISI 430FSe stainless steel and S39277 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 78% of their average alloy composition in common.

For each property being compared, the top bar is AISI 430FSe stainless steel and the bottom bar is S39277 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
250
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 23
28
Fatigue Strength, MPa 210
480
Poisson's Ratio 0.28
0.27
Reduction in Area, % 50
57
Shear Modulus, GPa 77
80
Shear Strength, MPa 340
600
Tensile Strength: Ultimate (UTS), MPa 540
930
Tensile Strength: Yield (Proof), MPa 310
660

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 410
450
Maximum Temperature: Mechanical, °C 870
1100
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1390
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
16
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 3.4
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
23
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.1
4.2
Embodied Energy, MJ/kg 30
59
Embodied Water, L/kg 120
180

Common Calculations

PREN (Pitting Resistance) 17
43
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
240
Resilience: Unit (Modulus of Resilience), kJ/m3 250
1070
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 20
33
Strength to Weight: Bending, points 19
27
Thermal Diffusivity, mm2/s 6.8
4.2
Thermal Shock Resistance, points 19
26

Alloy Composition

Carbon (C), % 0 to 0.12
0 to 0.025
Chromium (Cr), % 16 to 18
24 to 26
Copper (Cu), % 0
1.2 to 2.0
Iron (Fe), % 79.5 to 84
56.8 to 64.3
Manganese (Mn), % 0 to 1.3
0 to 0.8
Molybdenum (Mo), % 0
3.0 to 4.0
Nickel (Ni), % 0
6.5 to 8.0
Nitrogen (N), % 0
0.23 to 0.33
Phosphorus (P), % 0 to 0.060
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.8
Sulfur (S), % 0 to 0.060
0 to 0.0020
Tungsten (W), % 0
0.8 to 1.2