AISI 201LN Stainless Steel vs. AISI 304LN Stainless Steel
Both AISI 201LN stainless steel and AISI 304LN stainless steel are iron alloys. They have a moderately high 92% 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 AISI 304LN stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 210 to 320 | |
| 190 to 350 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 200 |
| Elongation at Break, % | 25 to 51 | |
| 7.8 to 46 |
| Fatigue Strength, MPa | 340 to 540 | |
| 200 to 440 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 77 | |
| 77 |
| Shear Strength, MPa | 530 to 680 | |
| 400 to 680 |
| Tensile Strength: Ultimate (UTS), MPa | 740 to 1060 | |
| 580 to 1160 |
| Tensile Strength: Yield (Proof), MPa | 350 to 770 | |
| 230 to 870 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 290 |
| Maximum Temperature: Corrosion, °C | 410 | |
| 420 |
| Maximum Temperature: Mechanical, °C | 880 | |
| 960 |
| Melting Completion (Liquidus), °C | 1410 | |
| 1420 |
| Melting Onset (Solidus), °C | 1370 | |
| 1380 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 480 |
| Thermal Conductivity, W/m-K | 15 | |
| 15 |
| Thermal Expansion, µm/m-K | 17 | |
| 16 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.4 | |
| 2.4 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.9 | |
| 2.7 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 12 | |
| 16 |
| Density, g/cm3 | 7.7 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 2.6 | |
| 3.1 |
| Embodied Energy, MJ/kg | 38 | |
| 44 |
| Embodied Water, L/kg | 140 | |
| 150 |
Common Calculations
| PREN (Pitting Resistance) | 20 | |
| 21 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 230 to 310 | |
| 83 to 270 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 310 to 1520 | |
| 140 to 1900 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 27 to 38 | |
| 21 to 41 |
| Strength to Weight: Bending, points | 24 to 30 | |
| 20 to 31 |
| Thermal Diffusivity, mm2/s | 4.0 | |
| 4.0 |
| Thermal Shock Resistance, points | 16 to 23 | |
| 13 to 26 |
Alloy Composition
| Carbon (C), % | 0 to 0.030 | |
| 0 to 0.030 |
| Chromium (Cr), % | 16 to 17.5 | |
| 18 to 20 |
| Copper (Cu), % | 0 to 1.0 | |
| 0 |
| Iron (Fe), % | 67.9 to 73.5 | |
| 65 to 73.9 |
| Manganese (Mn), % | 6.4 to 7.5 | |
| 0 to 2.0 |
| Nickel (Ni), % | 4.0 to 5.0 | |
| 8.0 to 12 |
| Nitrogen (N), % | 0.1 to 0.25 | |
| 0.1 to 0.16 |
| Phosphorus (P), % | 0 to 0.045 | |
| 0 to 0.045 |
| Silicon (Si), % | 0 to 0.75 | |
| 0 to 0.75 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.030 |