EN 1.4021 Stainless Steel vs. AISI 201 Stainless Steel
Both EN 1.4021 stainless steel and AISI 201 stainless steel are iron alloys. They have 86% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.
For each property being compared, the top bar is EN 1.4021 stainless steel and the bottom bar is AISI 201 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 200 |
| Elongation at Break, % | 11 to 17 | |
| 4.6 to 51 |
| Fatigue Strength, MPa | 240 to 380 | |
| 280 to 600 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 76 | |
| 77 |
| Shear Strength, MPa | 390 to 530 | |
| 450 to 840 |
| Tensile Strength: Ultimate (UTS), MPa | 630 to 880 | |
| 650 to 1450 |
| Tensile Strength: Yield (Proof), MPa | 390 to 670 | |
| 300 to 1080 |
Thermal Properties
| Latent Heat of Fusion, J/g | 270 | |
| 280 |
| Maximum Temperature: Corrosion, °C | 390 | |
| 410 |
| Maximum Temperature: Mechanical, °C | 760 | |
| 880 |
| Melting Completion (Liquidus), °C | 1440 | |
| 1410 |
| Melting Onset (Solidus), °C | 1400 | |
| 1370 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 480 |
| Thermal Conductivity, W/m-K | 30 | |
| 15 |
| Thermal Expansion, µm/m-K | 11 | |
| 17 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.9 | |
| 2.5 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 3.3 | |
| 2.9 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 7.0 | |
| 12 |
| Density, g/cm3 | 7.7 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 1.9 | |
| 2.6 |
| Embodied Energy, MJ/kg | 27 | |
| 38 |
| Embodied Water, L/kg | 100 | |
| 140 |
Common Calculations
| PREN (Pitting Resistance) | 13 | |
| 19 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 88 to 110 | |
| 61 to 340 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 400 to 1160 | |
| 230 to 2970 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 23 to 31 | |
| 23 to 52 |
| Strength to Weight: Bending, points | 21 to 26 | |
| 22 to 37 |
| Thermal Diffusivity, mm2/s | 8.1 | |
| 4.0 |
| Thermal Shock Resistance, points | 22 to 31 | |
| 14 to 32 |
Alloy Composition
| Carbon (C), % | 0.16 to 0.25 | |
| 0 to 0.15 |
| Chromium (Cr), % | 12 to 14 | |
| 16 to 18 |
| Iron (Fe), % | 83.2 to 87.8 | |
| 67.5 to 75 |
| Manganese (Mn), % | 0 to 1.5 | |
| 5.5 to 7.5 |
| Nickel (Ni), % | 0 | |
| 3.5 to 5.5 |
| Nitrogen (N), % | 0 | |
| 0 to 0.25 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.060 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.030 |