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AISI 309HCb Stainless Steel vs. AISI 430FSe Stainless Steel

Both AISI 309HCb stainless steel and AISI 430FSe stainless steel are iron alloys. Both are furnished in the annealed condition. They have 79% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is AISI 309HCb stainless steel and the bottom bar is AISI 430FSe stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
230
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 46
23
Fatigue Strength, MPa 210
210
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
77
Shear Strength, MPa 410
340
Tensile Strength: Ultimate (UTS), MPa 590
540
Tensile Strength: Yield (Proof), MPa 230
310

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Maximum Temperature: Corrosion, °C 510
410
Maximum Temperature: Mechanical, °C 1090
870
Melting Completion (Liquidus), °C 1420
1440
Melting Onset (Solidus), °C 1380
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
25
Thermal Expansion, µm/m-K 16
10

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 23
8.5
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 4.1
2.1
Embodied Energy, MJ/kg 59
30
Embodied Water, L/kg 170
120

Common Calculations

PREN (Pitting Resistance) 23
17
Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
110
Resilience: Unit (Modulus of Resilience), kJ/m3 130
250
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
20
Strength to Weight: Bending, points 20
19
Thermal Diffusivity, mm2/s 4.0
6.8
Thermal Shock Resistance, points 13
19

Alloy Composition

Carbon (C), % 0.040 to 0.1
0 to 0.12
Chromium (Cr), % 22 to 24
16 to 18
Iron (Fe), % 56 to 66
79.5 to 84
Manganese (Mn), % 0 to 2.0
0 to 1.3
Nickel (Ni), % 12 to 16
0
Niobium (Nb), % 0 to 1.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.060
Silicon (Si), % 0 to 0.75
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.060