EN 1.4945 Stainless Steel vs. S31277 Stainless Steel
Both EN 1.4945 stainless steel and S31277 stainless steel are iron alloys. They have 75% 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 1.4945 stainless steel and the bottom bar is S31277 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 210 |
| Elongation at Break, % | 19 to 34 | |
| 45 |
| Fatigue Strength, MPa | 230 to 350 | |
| 380 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 77 | |
| 80 |
| Shear Strength, MPa | 430 to 460 | |
| 600 |
| Tensile Strength: Ultimate (UTS), MPa | 640 to 740 | |
| 860 |
| Tensile Strength: Yield (Proof), MPa | 290 to 550 | |
| 410 |
Thermal Properties
| Latent Heat of Fusion, J/g | 290 | |
| 310 |
| Maximum Temperature: Corrosion, °C | 520 | |
| 430 |
| Maximum Temperature: Mechanical, °C | 920 | |
| 1100 |
| Melting Completion (Liquidus), °C | 1490 | |
| 1460 |
| Melting Onset (Solidus), °C | 1440 | |
| 1410 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 460 |
| Thermal Expansion, µm/m-K | 17 | |
| 16 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 30 | |
| 36 |
| Density, g/cm3 | 8.1 | |
| 8.1 |
| Embodied Carbon, kg CO2/kg material | 5.0 | |
| 6.7 |
| Embodied Energy, MJ/kg | 73 | |
| 90 |
| Embodied Water, L/kg | 150 | |
| 220 |
Common Calculations
| PREN (Pitting Resistance) | 23 | |
| 51 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 130 to 180 | |
| 320 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 210 to 760 | |
| 410 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 22 to 25 | |
| 29 |
| Strength to Weight: Bending, points | 20 to 22 | |
| 25 |
| Thermal Shock Resistance, points | 14 to 16 | |
| 19 |
Alloy Composition
| Carbon (C), % | 0.040 to 0.1 | |
| 0 to 0.020 |
| Chromium (Cr), % | 15.5 to 17.5 | |
| 20.5 to 23 |
| Copper (Cu), % | 0 | |
| 0.5 to 1.5 |
| Iron (Fe), % | 57.9 to 65.7 | |
| 35.5 to 46.2 |
| Manganese (Mn), % | 0 to 1.5 | |
| 0 to 3.0 |
| Molybdenum (Mo), % | 0 | |
| 6.5 to 8.0 |
| Nickel (Ni), % | 15.5 to 17.5 | |
| 26 to 28 |
| Niobium (Nb), % | 0.4 to 1.2 | |
| 0 |
| Nitrogen (N), % | 0.060 to 0.14 | |
| 0.3 to 0.4 |
| Phosphorus (P), % | 0 to 0.035 | |
| 0 to 0.030 |
| Silicon (Si), % | 0.3 to 0.6 | |
| 0 to 0.5 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.010 |
| Tungsten (W), % | 2.5 to 3.5 | |
| 0 |