AISI 201 Stainless Steel vs. AISI 201LN Stainless Steel
Both AISI 201 stainless steel and AISI 201LN stainless steel are iron alloys. They have a very high 99% of their average alloy composition in common.
For each property being compared, the top bar is AISI 201 stainless steel and the bottom bar is AISI 201LN stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 200 to 440 | |
| 210 to 320 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 200 |
| Elongation at Break, % | 4.6 to 51 | |
| 25 to 51 |
| Fatigue Strength, MPa | 280 to 600 | |
| 340 to 540 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 77 | |
| 77 |
| Shear Strength, MPa | 450 to 840 | |
| 530 to 680 |
| Tensile Strength: Ultimate (UTS), MPa | 650 to 1450 | |
| 740 to 1060 |
| Tensile Strength: Yield (Proof), MPa | 300 to 1080 | |
| 350 to 770 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 280 |
| Maximum Temperature: Corrosion, °C | 410 | |
| 410 |
| Maximum Temperature: Mechanical, °C | 880 | |
| 880 |
| Melting Completion (Liquidus), °C | 1410 | |
| 1410 |
| Melting Onset (Solidus), °C | 1370 | |
| 1370 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 480 |
| Thermal Conductivity, W/m-K | 15 | |
| 15 |
| Thermal Expansion, µm/m-K | 17 | |
| 17 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.5 | |
| 2.4 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.9 | |
| 2.9 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 12 | |
| 12 |
| Density, g/cm3 | 7.7 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 2.6 | |
| 2.6 |
| Embodied Energy, MJ/kg | 38 | |
| 38 |
| Embodied Water, L/kg | 140 | |
| 140 |
Common Calculations
| PREN (Pitting Resistance) | 19 | |
| 20 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 61 to 340 | |
| 230 to 310 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 230 to 2970 | |
| 310 to 1520 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 23 to 52 | |
| 27 to 38 |
| Strength to Weight: Bending, points | 22 to 37 | |
| 24 to 30 |
| Thermal Diffusivity, mm2/s | 4.0 | |
| 4.0 |
| Thermal Shock Resistance, points | 14 to 32 | |
| 16 to 23 |
Alloy Composition
| Carbon (C), % | 0 to 0.15 | |
| 0 to 0.030 |
| Chromium (Cr), % | 16 to 18 | |
| 16 to 17.5 |
| Copper (Cu), % | 0 | |
| 0 to 1.0 |
| Iron (Fe), % | 67.5 to 75 | |
| 67.9 to 73.5 |
| Manganese (Mn), % | 5.5 to 7.5 | |
| 6.4 to 7.5 |
| Nickel (Ni), % | 3.5 to 5.5 | |
| 4.0 to 5.0 |
| Nitrogen (N), % | 0 to 0.25 | |
| 0.1 to 0.25 |
| Phosphorus (P), % | 0 to 0.060 | |
| 0 to 0.045 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 0.75 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.015 |