S31727 Stainless Steel vs. EN 1.1181 Steel
Both S31727 stainless steel and EN 1.1181 steel are iron alloys. They have 59% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.
For each property being compared, the top bar is S31727 stainless steel and the bottom bar is EN 1.1181 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 190 | |
| 160 to 180 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 40 | |
| 19 to 20 |
| Fatigue Strength, MPa | 240 | |
| 190 to 260 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 78 | |
| 73 |
| Shear Strength, MPa | 430 | |
| 350 to 390 |
| Tensile Strength: Ultimate (UTS), MPa | 630 | |
| 560 to 620 |
| Tensile Strength: Yield (Proof), MPa | 270 | |
| 280 to 380 |
Thermal Properties
| Latent Heat of Fusion, J/g | 290 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 1010 | |
| 400 |
| Melting Completion (Liquidus), °C | 1440 | |
| 1460 |
| Melting Onset (Solidus), °C | 1390 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Expansion, µm/m-K | 16 | |
| 11 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 24 | |
| 2.1 |
| Density, g/cm3 | 8.0 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 4.7 | |
| 1.4 |
| Embodied Energy, MJ/kg | 64 | |
| 19 |
| Embodied Water, L/kg | 180 | |
| 47 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 200 | |
| 90 to 110 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 190 | |
| 210 to 380 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 22 | |
| 20 to 22 |
| Strength to Weight: Bending, points | 20 | |
| 19 to 21 |
| Thermal Shock Resistance, points | 14 | |
| 19 to 21 |
Alloy Composition
| Carbon (C), % | 0 to 0.030 | |
| 0.32 to 0.39 |
| Chromium (Cr), % | 17.5 to 19 | |
| 0 to 0.4 |
| Copper (Cu), % | 2.8 to 4.0 | |
| 0 |
| Iron (Fe), % | 53.7 to 61.3 | |
| 97.4 to 99.18 |
| Manganese (Mn), % | 0 to 1.0 | |
| 0.5 to 0.8 |
| Molybdenum (Mo), % | 3.8 to 4.5 | |
| 0 to 0.1 |
| Nickel (Ni), % | 14.5 to 16.5 | |
| 0 to 0.4 |
| Nitrogen (N), % | 0.15 to 0.21 | |
| 0 |
| Phosphorus (P), % | 0 to 0.030 | |
| 0 to 0.035 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 0.4 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.035 |