EN 1.1181 Steel vs. S31277 Stainless Steel
Both EN 1.1181 steel and S31277 stainless steel are iron alloys. They have 42% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.
For each property being compared, the top bar is EN 1.1181 steel and the bottom bar is S31277 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 210 |
| Elongation at Break, % | 19 to 20 | |
| 45 |
| Fatigue Strength, MPa | 190 to 260 | |
| 380 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Shear Modulus, GPa | 73 | |
| 80 |
| Shear Strength, MPa | 350 to 390 | |
| 600 |
| Tensile Strength: Ultimate (UTS), MPa | 560 to 620 | |
| 860 |
| Tensile Strength: Yield (Proof), MPa | 280 to 380 | |
| 410 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 310 |
| Maximum Temperature: Mechanical, °C | 400 | |
| 1100 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1460 |
| Melting Onset (Solidus), °C | 1420 | |
| 1410 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 460 |
| Thermal Expansion, µm/m-K | 11 | |
| 16 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 2.1 | |
| 36 |
| Density, g/cm3 | 7.8 | |
| 8.1 |
| Embodied Carbon, kg CO2/kg material | 1.4 | |
| 6.7 |
| Embodied Energy, MJ/kg | 19 | |
| 90 |
| Embodied Water, L/kg | 47 | |
| 220 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 90 to 110 | |
| 320 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 210 to 380 | |
| 410 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 20 to 22 | |
| 29 |
| Strength to Weight: Bending, points | 19 to 21 | |
| 25 |
| Thermal Shock Resistance, points | 19 to 21 | |
| 19 |
Alloy Composition
| Carbon (C), % | 0.32 to 0.39 | |
| 0 to 0.020 |
| Chromium (Cr), % | 0 to 0.4 | |
| 20.5 to 23 |
| Copper (Cu), % | 0 | |
| 0.5 to 1.5 |
| Iron (Fe), % | 97.4 to 99.18 | |
| 35.5 to 46.2 |
| Manganese (Mn), % | 0.5 to 0.8 | |
| 0 to 3.0 |
| Molybdenum (Mo), % | 0 to 0.1 | |
| 6.5 to 8.0 |
| Nickel (Ni), % | 0 to 0.4 | |
| 26 to 28 |
| Nitrogen (N), % | 0 | |
| 0.3 to 0.4 |
| Phosphorus (P), % | 0 to 0.035 | |
| 0 to 0.030 |
| Silicon (Si), % | 0 to 0.4 | |
| 0 to 0.5 |
| Sulfur (S), % | 0 to 0.035 | |
| 0 to 0.010 |