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AISI 409 Stainless Steel vs. S32050 Stainless Steel

Both AISI 409 stainless steel and S32050 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 60% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is AISI 409 stainless steel and the bottom bar is S32050 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 24
46
Fatigue Strength, MPa 140
340
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
81
Shear Strength, MPa 270
540
Tensile Strength: Ultimate (UTS), MPa 420
770
Tensile Strength: Yield (Proof), MPa 200
370

Thermal Properties

Latent Heat of Fusion, J/g 270
310
Maximum Temperature: Corrosion, °C 450
440
Maximum Temperature: Mechanical, °C 710
1100
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
12
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
2.1

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
31
Density, g/cm3 7.7
8.0
Embodied Carbon, kg CO2/kg material 2.0
6.0
Embodied Energy, MJ/kg 28
81
Embodied Water, L/kg 94
210

Common Calculations

PREN (Pitting Resistance) 11
48
Resilience: Ultimate (Unit Rupture Work), MJ/m3 83
290
Resilience: Unit (Modulus of Resilience), kJ/m3 100
330
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 15
27
Strength to Weight: Bending, points 16
23
Thermal Diffusivity, mm2/s 6.7
3.3
Thermal Shock Resistance, points 15
17

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.030
Chromium (Cr), % 10.5 to 11.7
22 to 24
Copper (Cu), % 0
0 to 0.4
Iron (Fe), % 84.9 to 89.5
43.1 to 51.8
Manganese (Mn), % 0 to 1.0
0 to 1.5
Molybdenum (Mo), % 0
6.0 to 6.6
Nickel (Ni), % 0 to 0.5
20 to 23
Nitrogen (N), % 0
0.21 to 0.32
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.020
Titanium (Ti), % 0 to 0.75
0