AISI 301L Stainless Steel vs. AISI 201 Stainless Steel
Both AISI 301L stainless steel and AISI 201 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 201 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 210 to 320 | |
| 200 to 440 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 200 |
| Elongation at Break, % | 22 to 50 | |
| 4.6 to 51 |
| Fatigue Strength, MPa | 240 to 530 | |
| 280 to 600 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 77 | |
| 77 |
| Shear Strength, MPa | 440 to 660 | |
| 450 to 840 |
| Tensile Strength: Ultimate (UTS), MPa | 620 to 1040 | |
| 650 to 1450 |
| Tensile Strength: Yield (Proof), MPa | 250 to 790 | |
| 300 to 1080 |
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 | |
| 2.5 |
| 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 | |
| 61 to 340 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 160 to 1580 | |
| 230 to 2970 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 22 to 37 | |
| 23 to 52 |
| Strength to Weight: Bending, points | 21 to 29 | |
| 22 to 37 |
| Thermal Diffusivity, mm2/s | 4.1 | |
| 4.0 |
| Thermal Shock Resistance, points | 14 to 24 | |
| 14 to 32 |
Alloy Composition
| Carbon (C), % | 0 to 0.030 | |
| 0 to 0.15 |
| Chromium (Cr), % | 16 to 18 | |
| 16 to 18 |
| Iron (Fe), % | 70.7 to 78 | |
| 67.5 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 0.060 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.030 |