EN 1.4378 Stainless Steel vs. AISI 205 Stainless Steel
Both EN 1.4378 stainless steel and AISI 205 stainless steel are iron alloys. They have a very high 98% of their average alloy composition in common.
For each property being compared, the top bar is EN 1.4378 stainless steel and the bottom bar is AISI 205 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 190 to 340 | |
| 210 to 440 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 200 |
| Elongation at Break, % | 14 to 34 | |
| 11 to 51 |
| Fatigue Strength, MPa | 340 to 550 | |
| 410 to 640 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 77 | |
| 77 |
| Shear Strength, MPa | 510 to 680 | |
| 560 to 850 |
| Tensile Strength: Ultimate (UTS), MPa | 760 to 1130 | |
| 800 to 1430 |
| Tensile Strength: Yield (Proof), MPa | 430 to 970 | |
| 450 to 1100 |
Thermal Properties
| Latent Heat of Fusion, J/g | 290 | |
| 280 |
| Maximum Temperature: Corrosion, °C | 410 | |
| 410 |
| Maximum Temperature: Mechanical, °C | 910 | |
| 880 |
| Melting Completion (Liquidus), °C | 1390 | |
| 1380 |
| Melting Onset (Solidus), °C | 1350 | |
| 1340 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 480 |
| Thermal Expansion, µm/m-K | 17 | |
| 18 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 12 | |
| 11 |
| Density, g/cm3 | 7.6 | |
| 7.6 |
| Embodied Carbon, kg CO2/kg material | 2.7 | |
| 2.6 |
| Embodied Energy, MJ/kg | 39 | |
| 37 |
| Embodied Water, L/kg | 150 | |
| 150 |
Common Calculations
| PREN (Pitting Resistance) | 23 | |
| 23 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 150 to 220 | |
| 150 to 430 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 470 to 2370 | |
| 510 to 3060 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 26 |
| Strength to Weight: Axial, points | 28 to 41 | |
| 29 to 52 |
| Strength to Weight: Bending, points | 24 to 31 | |
| 25 to 37 |
| Thermal Shock Resistance, points | 16 to 23 | |
| 16 to 29 |
Alloy Composition
| Carbon (C), % | 0 to 0.080 | |
| 0.12 to 0.25 |
| Chromium (Cr), % | 17 to 19 | |
| 16.5 to 18.5 |
| Iron (Fe), % | 61.2 to 69 | |
| 62.6 to 68.1 |
| Manganese (Mn), % | 11.5 to 14.5 | |
| 14 to 15.5 |
| Nickel (Ni), % | 2.3 to 3.7 | |
| 1.0 to 1.7 |
| Nitrogen (N), % | 0.2 to 0.4 | |
| 0.32 to 0.4 |
| Phosphorus (P), % | 0 to 0.060 | |
| 0 to 0.060 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.030 |