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SAE-AISI 9254 Steel vs. AISI 430FSe Stainless Steel

Both SAE-AISI 9254 steel and AISI 430FSe stainless steel are iron alloys. Both are furnished in the annealed condition. They have 84% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 9254 steel and the bottom bar is AISI 430FSe stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
230
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20
23
Fatigue Strength, MPa 280
210
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
77
Shear Strength, MPa 410
340
Tensile Strength: Ultimate (UTS), MPa 660
540
Tensile Strength: Yield (Proof), MPa 410
310

Thermal Properties

Latent Heat of Fusion, J/g 270
280
Maximum Temperature: Mechanical, °C 410
870
Melting Completion (Liquidus), °C 1440
1440
Melting Onset (Solidus), °C 1400
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 46
25
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
3.4

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
8.5
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 1.5
2.1
Embodied Energy, MJ/kg 20
30
Embodied Water, L/kg 49
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
110
Resilience: Unit (Modulus of Resilience), kJ/m3 450
250
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 24
20
Strength to Weight: Bending, points 22
19
Thermal Diffusivity, mm2/s 12
6.8
Thermal Shock Resistance, points 20
19

Alloy Composition

Carbon (C), % 0.51 to 0.59
0 to 0.12
Chromium (Cr), % 0.6 to 0.8
16 to 18
Iron (Fe), % 96.1 to 97.1
79.5 to 84
Manganese (Mn), % 0.6 to 0.8
0 to 1.3
Phosphorus (P), % 0 to 0.035
0 to 0.060
Silicon (Si), % 1.2 to 1.6
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.060