EN 1.4031 Stainless Steel vs. S66286 Stainless Steel
Both EN 1.4031 stainless steel and S66286 stainless steel are iron alloys. They have 69% of their average alloy composition in common.
For each property being compared, the top bar is EN 1.4031 stainless steel and the bottom bar is S66286 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 11 to 13 | |
| 17 to 40 |
| Fatigue Strength, MPa | 220 to 400 | |
| 240 to 410 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 76 | |
| 75 |
| Shear Strength, MPa | 400 to 540 | |
| 420 to 630 |
| Tensile Strength: Ultimate (UTS), MPa | 670 to 900 | |
| 620 to 1020 |
| Tensile Strength: Yield (Proof), MPa | 390 to 730 | |
| 280 to 670 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 300 |
| Maximum Temperature: Corrosion, °C | 390 | |
| 780 |
| Maximum Temperature: Mechanical, °C | 770 | |
| 920 |
| Melting Completion (Liquidus), °C | 1440 | |
| 1430 |
| Melting Onset (Solidus), °C | 1400 | |
| 1370 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 470 |
| Thermal Conductivity, W/m-K | 30 | |
| 15 |
| Thermal Expansion, µm/m-K | 11 | |
| 17 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 3.1 | |
| 1.9 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 3.7 | |
| 2.2 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 7.0 | |
| 26 |
| Density, g/cm3 | 7.7 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 1.9 | |
| 6.0 |
| Embodied Energy, MJ/kg | 27 | |
| 87 |
| Embodied Water, L/kg | 100 | |
| 170 |
Common Calculations
| PREN (Pitting Resistance) | 14 | |
| 19 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 77 to 94 | |
| 150 to 200 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 380 to 1360 | |
| 190 to 1150 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 24 to 32 | |
| 22 to 36 |
| Strength to Weight: Bending, points | 22 to 27 | |
| 20 to 28 |
| Thermal Diffusivity, mm2/s | 8.1 | |
| 4.0 |
| Thermal Shock Resistance, points | 23 to 32 | |
| 13 to 22 |
Alloy Composition
| Aluminum (Al), % | 0 | |
| 0 to 0.35 |
| Boron (B), % | 0 | |
| 0.0010 to 0.010 |
| Carbon (C), % | 0.36 to 0.42 | |
| 0 to 0.080 |
| Chromium (Cr), % | 12.5 to 14.5 | |
| 13.5 to 16 |
| Iron (Fe), % | 83 to 87.1 | |
| 49.1 to 59.5 |
| Manganese (Mn), % | 0 to 1.0 | |
| 0 to 2.0 |
| Molybdenum (Mo), % | 0 | |
| 1.0 to 1.5 |
| Nickel (Ni), % | 0 | |
| 24 to 27 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.030 |
| Titanium (Ti), % | 0 | |
| 1.9 to 2.4 |
| Vanadium (V), % | 0 | |
| 0.1 to 0.5 |