AISI 310S Stainless Steel vs. AISI 201LN Stainless Steel
Both AISI 310S stainless steel and AISI 201LN stainless steel are iron alloys. They have 75% of their average alloy composition in common.
For each property being compared, the top bar is AISI 310S stainless steel and the bottom bar is AISI 201LN stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 170 to 210 | |
| 210 to 320 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 200 |
| Elongation at Break, % | 34 to 44 | |
| 25 to 51 |
| Fatigue Strength, MPa | 250 to 280 | |
| 340 to 540 |
| Poisson's Ratio | 0.27 | |
| 0.28 |
| Shear Modulus, GPa | 79 | |
| 77 |
| Shear Strength, MPa | 420 to 470 | |
| 530 to 680 |
| Tensile Strength: Ultimate (UTS), MPa | 600 to 710 | |
| 740 to 1060 |
| Tensile Strength: Yield (Proof), MPa | 270 to 350 | |
| 350 to 770 |
Thermal Properties
| Latent Heat of Fusion, J/g | 310 | |
| 280 |
| Maximum Temperature: Corrosion, °C | 450 | |
| 410 |
| Maximum Temperature: Mechanical, °C | 1100 | |
| 880 |
| Melting Completion (Liquidus), °C | 1450 | |
| 1410 |
| Melting Onset (Solidus), °C | 1400 | |
| 1370 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 480 |
| Thermal Conductivity, W/m-K | 16 | |
| 15 |
| Thermal Expansion, µm/m-K | 16 | |
| 17 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.0 | |
| 2.4 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.3 | |
| 2.9 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 25 | |
| 12 |
| Density, g/cm3 | 7.9 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 4.3 | |
| 2.6 |
| Embodied Energy, MJ/kg | 61 | |
| 38 |
| Embodied Water, L/kg | 190 | |
| 140 |
Common Calculations
| PREN (Pitting Resistance) | 25 | |
| 20 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 200 to 220 | |
| 230 to 310 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 190 to 310 | |
| 310 to 1520 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 21 to 25 | |
| 27 to 38 |
| Strength to Weight: Bending, points | 20 to 22 | |
| 24 to 30 |
| Thermal Diffusivity, mm2/s | 4.1 | |
| 4.0 |
| Thermal Shock Resistance, points | 14 to 16 | |
| 16 to 23 |
Alloy Composition
| Carbon (C), % | 0 to 0.080 | |
| 0 to 0.030 |
| Chromium (Cr), % | 24 to 26 | |
| 16 to 17.5 |
| Copper (Cu), % | 0 | |
| 0 to 1.0 |
| Iron (Fe), % | 48.3 to 57 | |
| 67.9 to 73.5 |
| Manganese (Mn), % | 0 to 2.0 | |
| 6.4 to 7.5 |
| Nickel (Ni), % | 19 to 22 | |
| 4.0 to 5.0 |
| Nitrogen (N), % | 0 | |
| 0.1 to 0.25 |
| Phosphorus (P), % | 0 to 0.045 | |
| 0 to 0.045 |
| Silicon (Si), % | 0 to 1.5 | |
| 0 to 0.75 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.015 |