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AISI 201LN Stainless Steel vs. S31260 Stainless Steel

Both AISI 201LN stainless steel and S31260 stainless steel are iron alloys. They have 86% of their average alloy composition in common.

For each property being compared, the top bar is AISI 201LN stainless steel and the bottom bar is S31260 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 320
260
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 25 to 51
23
Fatigue Strength, MPa 340 to 540
370
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
80
Shear Strength, MPa 530 to 680
500
Tensile Strength: Ultimate (UTS), MPa 740 to 1060
790
Tensile Strength: Yield (Proof), MPa 350 to 770
540

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 410
450
Maximum Temperature: Mechanical, °C 880
1100
Melting Completion (Liquidus), °C 1410
1450
Melting Onset (Solidus), °C 1370
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
16
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 12
20
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.6
3.9
Embodied Energy, MJ/kg 38
53
Embodied Water, L/kg 140
180

Common Calculations

PREN (Pitting Resistance) 20
39
Resilience: Ultimate (Unit Rupture Work), MJ/m3 230 to 310
160
Resilience: Unit (Modulus of Resilience), kJ/m3 310 to 1520
720
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27 to 38
28
Strength to Weight: Bending, points 24 to 30
24
Thermal Diffusivity, mm2/s 4.0
4.3
Thermal Shock Resistance, points 16 to 23
22

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 16 to 17.5
24 to 26
Copper (Cu), % 0 to 1.0
0.2 to 0.8
Iron (Fe), % 67.9 to 73.5
59.6 to 67.6
Manganese (Mn), % 6.4 to 7.5
0 to 1.0
Molybdenum (Mo), % 0
2.5 to 3.5
Nickel (Ni), % 4.0 to 5.0
5.5 to 7.5
Nitrogen (N), % 0.1 to 0.25
0.1 to 0.3
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 0.75
0 to 0.75
Sulfur (S), % 0 to 0.015
0 to 0.030
Tungsten (W), % 0
0.1 to 0.5