AISI 301L Stainless Steel vs. AISI 201L Stainless Steel
Both AISI 301L stainless steel and AISI 201L stainless steel are iron alloys. They have a moderately high 94% of their average alloy composition in common.
For each property being compared, the top bar is AISI 301L stainless steel and the bottom bar is AISI 201L stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 210 to 320 | |
| 190 to 320 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 200 |
| Elongation at Break, % | 22 to 50 | |
| 22 to 46 |
| Fatigue Strength, MPa | 240 to 530 | |
| 270 to 530 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 77 | |
| 77 |
| Shear Strength, MPa | 440 to 660 | |
| 520 to 660 |
| Tensile Strength: Ultimate (UTS), MPa | 620 to 1040 | |
| 740 to 1040 |
| Tensile Strength: Yield (Proof), MPa | 250 to 790 | |
| 290 to 790 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 280 |
| Maximum Temperature: Corrosion, °C | 410 | |
| 410 |
| Maximum Temperature: Mechanical, °C | 890 | |
| 880 |
| Melting Completion (Liquidus), °C | 1430 | |
| 1410 |
| Melting Onset (Solidus), °C | 1390 | |
| 1370 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 480 |
| Thermal Conductivity, W/m-K | 15 | |
| 15 |
| Thermal Expansion, µm/m-K | 16 | |
| 17 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.3 | |
| 2.4 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.7 | |
| 2.9 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 13 | |
| 12 |
| Density, g/cm3 | 7.8 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 2.7 | |
| 2.6 |
| Embodied Energy, MJ/kg | 39 | |
| 38 |
| Embodied Water, L/kg | 130 | |
| 140 |
Common Calculations
| PREN (Pitting Resistance) | 19 | |
| 19 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 210 to 300 | |
| 210 to 300 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 160 to 1580 | |
| 220 to 1570 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 22 to 37 | |
| 27 to 37 |
| Strength to Weight: Bending, points | 21 to 29 | |
| 24 to 30 |
| Thermal Diffusivity, mm2/s | 4.1 | |
| 4.0 |
| Thermal Shock Resistance, points | 14 to 24 | |
| 16 to 23 |
Alloy Composition
| Carbon (C), % | 0 to 0.030 | |
| 0 to 0.030 |
| Chromium (Cr), % | 16 to 18 | |
| 16 to 18 |
| Iron (Fe), % | 70.7 to 78 | |
| 67.9 to 75 |
| Manganese (Mn), % | 0 to 2.0 | |
| 5.5 to 7.5 |
| Nickel (Ni), % | 6.0 to 8.0 | |
| 3.5 to 5.5 |
| Nitrogen (N), % | 0 to 0.2 | |
| 0 to 0.25 |
| Phosphorus (P), % | 0 to 0.045 | |
| 0 to 0.045 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 0.75 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.030 |