EN 1.4401 Stainless Steel vs. EN 1.4020 Stainless Steel
Both EN 1.4401 stainless steel and EN 1.4020 stainless steel are iron alloys. They have 88% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.
For each property being compared, the top bar is EN 1.4401 stainless steel and the bottom bar is EN 1.4020 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 190 to 270 | |
| 190 to 340 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 200 |
| Elongation at Break, % | 14 to 40 | |
| 13 to 34 |
| Fatigue Strength, MPa | 200 to 320 | |
| 340 to 540 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 78 | |
| 77 |
| Shear Strength, MPa | 410 to 550 | |
| 510 to 680 |
| Tensile Strength: Ultimate (UTS), MPa | 600 to 900 | |
| 770 to 1130 |
| Tensile Strength: Yield (Proof), MPa | 230 to 570 | |
| 430 to 950 |
Thermal Properties
| Latent Heat of Fusion, J/g | 290 | |
| 280 |
| Maximum Temperature: Corrosion, °C | 410 | |
| 410 |
| Maximum Temperature: Mechanical, °C | 950 | |
| 890 |
| Melting Completion (Liquidus), °C | 1440 | |
| 1390 |
| Melting Onset (Solidus), °C | 1400 | |
| 1350 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 480 |
| Thermal Expansion, µm/m-K | 16 | |
| 17 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 19 | |
| 11 |
| Density, g/cm3 | 7.9 | |
| 7.6 |
| Embodied Carbon, kg CO2/kg material | 3.8 | |
| 2.5 |
| Embodied Energy, MJ/kg | 52 | |
| 37 |
| Embodied Water, L/kg | 150 | |
| 150 |
Common Calculations
| PREN (Pitting Resistance) | 26 | |
| 23 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 to 190 | |
| 140 to 220 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 130 to 800 | |
| 460 to 2290 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 21 to 32 | |
| 28 to 41 |
| Strength to Weight: Bending, points | 20 to 26 | |
| 25 to 32 |
| Thermal Shock Resistance, points | 13 to 20 | |
| 16 to 23 |
Alloy Composition
| Carbon (C), % | 0 to 0.070 | |
| 0 to 0.15 |
| Chromium (Cr), % | 16.5 to 18.5 | |
| 16.5 to 19 |
| Iron (Fe), % | 62.8 to 71.5 | |
| 62.8 to 71.8 |
| Manganese (Mn), % | 0 to 2.0 | |
| 11 to 14 |
| Molybdenum (Mo), % | 2.0 to 2.5 | |
| 0 |
| Nickel (Ni), % | 10 to 13 | |
| 0.5 to 2.5 |
| Nitrogen (N), % | 0 to 0.1 | |
| 0.2 to 0.45 |
| Phosphorus (P), % | 0 to 0.045 | |
| 0 to 0.045 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.030 |