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S31266 Stainless Steel vs. AISI 201L Stainless Steel

Both S31266 stainless steel and AISI 201L 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 201L stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 40
22 to 46
Fatigue Strength, MPa 400
270 to 530
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 81
77
Shear Strength, MPa 590
520 to 660
Tensile Strength: Ultimate (UTS), MPa 860
740 to 1040
Tensile Strength: Yield (Proof), MPa 470
290 to 790

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
2.4
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
210 to 300
Resilience: Unit (Modulus of Resilience), kJ/m3 540
220 to 1570
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 29
27 to 37
Strength to Weight: Bending, points 24
24 to 30
Thermal Diffusivity, mm2/s 3.1
4.0
Thermal Shock Resistance, points 18
16 to 23

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 23 to 25
16 to 18
Copper (Cu), % 1.0 to 2.5
0
Iron (Fe), % 34.1 to 46
67.9 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 0.045
Silicon (Si), % 0 to 1.0
0 to 0.75
Sulfur (S), % 0 to 0.020
0 to 0.030
Tungsten (W), % 1.5 to 2.5
0