EN 1.3940 Stainless Steel vs. EN 1.4107 Stainless Steel
Both EN 1.3940 stainless steel and EN 1.4107 stainless steel are iron alloys. They have 82% of their average alloy composition in common.
For each property being compared, the top bar is EN 1.3940 stainless steel and the bottom bar is EN 1.4107 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 34 | |
| 18 to 21 |
| Fatigue Strength, MPa | 190 | |
| 260 to 350 |
| Impact Strength: V-Notched Charpy, J | 130 | |
| 45 to 50 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 77 | |
| 76 |
| Tensile Strength: Ultimate (UTS), MPa | 540 | |
| 620 to 700 |
| Tensile Strength: Yield (Proof), MPa | 240 | |
| 400 to 570 |
Thermal Properties
| Latent Heat of Fusion, J/g | 290 | |
| 270 |
| Maximum Temperature: Corrosion, °C | 410 | |
| 390 |
| Maximum Temperature: Mechanical, °C | 930 | |
| 740 |
| Melting Completion (Liquidus), °C | 1420 | |
| 1450 |
| Melting Onset (Solidus), °C | 1380 | |
| 1410 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 480 |
| Thermal Conductivity, W/m-K | 15 | |
| 27 |
| Thermal Expansion, µm/m-K | 12 | |
| 10 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.3 | |
| 2.9 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.7 | |
| 3.3 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 17 | |
| 7.5 |
| Density, g/cm3 | 7.8 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 3.3 | |
| 2.1 |
| Embodied Energy, MJ/kg | 47 | |
| 30 |
| Embodied Water, L/kg | 150 | |
| 100 |
Common Calculations
| PREN (Pitting Resistance) | 20 | |
| 13 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 150 | |
| 110 to 120 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 150 | |
| 420 to 840 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 19 | |
| 22 to 25 |
| Strength to Weight: Bending, points | 19 | |
| 21 to 22 |
| Thermal Diffusivity, mm2/s | 4.1 | |
| 7.2 |
| Thermal Shock Resistance, points | 16 | |
| 22 to 25 |
Alloy Composition
| Carbon (C), % | 0 to 0.030 | |
| 0 to 0.1 |
| Chromium (Cr), % | 16.5 to 18.5 | |
| 11.5 to 12.5 |
| Copper (Cu), % | 0 | |
| 0 to 0.3 |
| Iron (Fe), % | 64.2 to 71.4 | |
| 83.8 to 87.2 |
| Manganese (Mn), % | 0 to 2.0 | |
| 0.5 to 0.8 |
| Molybdenum (Mo), % | 0 | |
| 0 to 0.5 |
| Nickel (Ni), % | 12 to 14 | |
| 0.8 to 1.5 |
| Nitrogen (N), % | 0.1 to 0.2 | |
| 0 |
| Phosphorus (P), % | 0 to 0.035 | |
| 0 to 0.030 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 0.4 |
| Sulfur (S), % | 0 to 0.020 | |
| 0 to 0.020 |
| Vanadium (V), % | 0 | |
| 0 to 0.080 |