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AISI 430FSe Stainless Steel vs. SAE-AISI 4137 Steel

Both AISI 430FSe stainless steel and SAE-AISI 4137 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 AISI 430FSe stainless steel and the bottom bar is SAE-AISI 4137 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
170
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 23
23
Fatigue Strength, MPa 210
240
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 340
350
Tensile Strength: Ultimate (UTS), MPa 540
550
Tensile Strength: Yield (Proof), MPa 310
340

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 870
420
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
45
Thermal Expansion, µm/m-K 10
12

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
2.4
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.1
1.5
Embodied Energy, MJ/kg 30
20
Embodied Water, L/kg 120
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
110
Resilience: Unit (Modulus of Resilience), kJ/m3 250
310
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 20
20
Strength to Weight: Bending, points 19
19
Thermal Diffusivity, mm2/s 6.8
12
Thermal Shock Resistance, points 19
18

Alloy Composition

Carbon (C), % 0 to 0.12
0.35 to 0.4
Chromium (Cr), % 16 to 18
0.8 to 1.1
Iron (Fe), % 79.5 to 84
96.9 to 97.9
Manganese (Mn), % 0 to 1.3
0.7 to 0.9
Molybdenum (Mo), % 0
0.15 to 0.25
Phosphorus (P), % 0 to 0.060
0 to 0.035
Silicon (Si), % 0 to 1.0
0.15 to 0.35
Sulfur (S), % 0 to 0.060
0 to 0.040