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S31266 Stainless Steel vs. AISI 201 Stainless Steel

Both S31266 stainless steel and AISI 201 stainless steel are iron alloys. They have 65% of their average alloy composition in common. There are 32 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 S31266 stainless steel and the bottom bar is AISI 201 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 40
4.6 to 51
Fatigue Strength, MPa 400
280 to 600
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 81
77
Shear Strength, MPa 590
450 to 840
Tensile Strength: Ultimate (UTS), MPa 860
650 to 1450
Tensile Strength: Yield (Proof), MPa 470
300 to 1080

Thermal Properties

Latent Heat of Fusion, J/g 310
280
Maximum Temperature: Corrosion, °C 440
410
Maximum Temperature: Mechanical, °C 1100
880
Melting Completion (Liquidus), °C 1470
1410
Melting Onset (Solidus), °C 1420
1370
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 12
15
Thermal Expansion, µm/m-K 16
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.8
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 37
12
Density, g/cm3 8.2
7.7
Embodied Carbon, kg CO2/kg material 6.5
2.6
Embodied Energy, MJ/kg 89
38
Embodied Water, L/kg 220
140

Common Calculations

PREN (Pitting Resistance) 54
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 290
61 to 340
Resilience: Unit (Modulus of Resilience), kJ/m3 540
230 to 2970
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 29
23 to 52
Strength to Weight: Bending, points 24
22 to 37
Thermal Diffusivity, mm2/s 3.1
4.0
Thermal Shock Resistance, points 18
14 to 32

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.15
Chromium (Cr), % 23 to 25
16 to 18
Copper (Cu), % 1.0 to 2.5
0
Iron (Fe), % 34.1 to 46
67.5 to 75
Manganese (Mn), % 2.0 to 4.0
5.5 to 7.5
Molybdenum (Mo), % 5.2 to 6.2
0
Nickel (Ni), % 21 to 24
3.5 to 5.5
Nitrogen (N), % 0.35 to 0.6
0 to 0.25
Phosphorus (P), % 0 to 0.035
0 to 0.060
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.030
Tungsten (W), % 1.5 to 2.5
0