EN 1.4371 Stainless Steel vs. EN 1.4401 Stainless Steel
Both EN 1.4371 stainless steel and EN 1.4401 stainless steel are iron alloys. They have 90% of their average alloy composition in common. There are 33 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 1.4371 stainless steel and the bottom bar is EN 1.4401 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 220 to 230 | |
| 190 to 270 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 200 |
| Elongation at Break, % | 45 to 51 | |
| 14 to 40 |
| Fatigue Strength, MPa | 290 to 340 | |
| 200 to 320 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 77 | |
| 78 |
| Shear Strength, MPa | 520 to 540 | |
| 410 to 550 |
| Tensile Strength: Ultimate (UTS), MPa | 740 to 750 | |
| 600 to 900 |
| Tensile Strength: Yield (Proof), MPa | 320 to 340 | |
| 230 to 570 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 290 |
| Maximum Temperature: Corrosion, °C | 410 | |
| 410 |
| Maximum Temperature: Mechanical, °C | 880 | |
| 950 |
| Melting Completion (Liquidus), °C | 1410 | |
| 1440 |
| Melting Onset (Solidus), °C | 1370 | |
| 1400 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 470 |
| Thermal Conductivity, W/m-K | 15 | |
| 15 |
| Thermal Expansion, µm/m-K | 17 | |
| 16 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.5 | |
| 2.3 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.9 | |
| 2.6 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 12 | |
| 19 |
| Density, g/cm3 | 7.7 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 2.6 | |
| 3.8 |
| Embodied Energy, MJ/kg | 38 | |
| 52 |
| Embodied Water, L/kg | 140 | |
| 150 |
Common Calculations
| PREN (Pitting Resistance) | 20 | |
| 26 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 270 to 310 | |
| 110 to 190 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 250 to 300 | |
| 130 to 800 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 27 | |
| 21 to 32 |
| Strength to Weight: Bending, points | 24 | |
| 20 to 26 |
| Thermal Diffusivity, mm2/s | 4.0 | |
| 4.0 |
| Thermal Shock Resistance, points | 16 | |
| 13 to 20 |
Alloy Composition
| Carbon (C), % | 0 to 0.030 | |
| 0 to 0.070 |
| Chromium (Cr), % | 16 to 17.5 | |
| 16.5 to 18.5 |
| Copper (Cu), % | 0 to 1.0 | |
| 0 |
| Iron (Fe), % | 66.7 to 74.4 | |
| 62.8 to 71.5 |
| Manganese (Mn), % | 6.0 to 8.0 | |
| 0 to 2.0 |
| Molybdenum (Mo), % | 0 | |
| 2.0 to 2.5 |
| Nickel (Ni), % | 3.5 to 5.5 | |
| 10 to 13 |
| Nitrogen (N), % | 0.15 to 0.25 | |
| 0 to 0.1 |
| 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 0.015 |