EN 1.4122 Stainless Steel vs. EN 1.4378 Stainless Steel
Both EN 1.4122 stainless steel and EN 1.4378 stainless steel are iron alloys. They have 83% of their average alloy composition in common. There are 28 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 1.4122 stainless steel and the bottom bar is EN 1.4378 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 200 |
| Elongation at Break, % | 14 | |
| 14 to 34 |
| Fatigue Strength, MPa | 260 to 360 | |
| 340 to 550 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 77 | |
| 77 |
| Shear Strength, MPa | 480 to 520 | |
| 510 to 680 |
| Tensile Strength: Ultimate (UTS), MPa | 790 to 850 | |
| 760 to 1130 |
| Tensile Strength: Yield (Proof), MPa | 450 to 630 | |
| 430 to 970 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 290 |
| Maximum Temperature: Corrosion, °C | 400 | |
| 410 |
| Maximum Temperature: Mechanical, °C | 870 | |
| 910 |
| Melting Completion (Liquidus), °C | 1440 | |
| 1390 |
| Melting Onset (Solidus), °C | 1400 | |
| 1350 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 480 |
| Thermal Expansion, µm/m-K | 10 | |
| 17 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 9.5 | |
| 12 |
| Density, g/cm3 | 7.7 | |
| 7.6 |
| Embodied Carbon, kg CO2/kg material | 2.4 | |
| 2.7 |
| Embodied Energy, MJ/kg | 33 | |
| 39 |
| Embodied Water, L/kg | 120 | |
| 150 |
Common Calculations
| PREN (Pitting Resistance) | 20 | |
| 23 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 93 to 110 | |
| 150 to 220 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 520 to 1000 | |
| 470 to 2370 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 28 to 31 | |
| 28 to 41 |
| Strength to Weight: Bending, points | 25 to 26 | |
| 24 to 31 |
| Thermal Shock Resistance, points | 28 to 30 | |
| 16 to 23 |
Alloy Composition
| Carbon (C), % | 0.33 to 0.45 | |
| 0 to 0.080 |
| Chromium (Cr), % | 15.5 to 17.5 | |
| 17 to 19 |
| Iron (Fe), % | 77.2 to 83.4 | |
| 61.2 to 69 |
| Manganese (Mn), % | 0 to 1.5 | |
| 11.5 to 14.5 |
| Molybdenum (Mo), % | 0.8 to 1.3 | |
| 0 |
| Nickel (Ni), % | 0 to 1.0 | |
| 2.3 to 3.7 |
| Nitrogen (N), % | 0 | |
| 0.2 to 0.4 |
| 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 |