EN 1.1127 Steel vs. S31730 Stainless Steel
Both EN 1.1127 steel and S31730 stainless steel are iron alloys. They have 58% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.
For each property being compared, the top bar is EN 1.1127 steel and the bottom bar is S31730 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 190 to 230 | |
| 180 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 200 |
| Elongation at Break, % | 14 to 25 | |
| 40 |
| Fatigue Strength, MPa | 280 to 370 | |
| 170 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Shear Modulus, GPa | 73 | |
| 77 |
| Shear Strength, MPa | 420 to 480 | |
| 370 |
| Tensile Strength: Ultimate (UTS), MPa | 660 to 790 | |
| 540 |
| Tensile Strength: Yield (Proof), MPa | 410 to 580 | |
| 200 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 290 |
| Maximum Temperature: Mechanical, °C | 400 | |
| 990 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1430 |
| Melting Onset (Solidus), °C | 1410 | |
| 1390 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Expansion, µm/m-K | 12 | |
| 16 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 2.1 | |
| 24 |
| Density, g/cm3 | 7.8 | |
| 8.0 |
| Embodied Carbon, kg CO2/kg material | 1.5 | |
| 4.6 |
| Embodied Energy, MJ/kg | 19 | |
| 63 |
| Embodied Water, L/kg | 49 | |
| 180 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 90 to 140 | |
| 170 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 440 to 880 | |
| 99 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 23 to 28 | |
| 19 |
| Strength to Weight: Bending, points | 22 to 24 | |
| 18 |
| Thermal Shock Resistance, points | 21 to 25 | |
| 12 |
Alloy Composition
| Carbon (C), % | 0.34 to 0.42 | |
| 0 to 0.030 |
| Chromium (Cr), % | 0 to 0.4 | |
| 17 to 19 |
| Copper (Cu), % | 0 | |
| 4.0 to 5.0 |
| Iron (Fe), % | 96.6 to 98.1 | |
| 52.4 to 61 |
| Manganese (Mn), % | 1.4 to 1.7 | |
| 0 to 2.0 |
| Molybdenum (Mo), % | 0 to 0.1 | |
| 3.0 to 4.0 |
| Nickel (Ni), % | 0 to 0.4 | |
| 15 to 16.5 |
| Nitrogen (N), % | 0 | |
| 0 to 0.045 |
| Phosphorus (P), % | 0 to 0.035 | |
| 0 to 0.040 |
| Silicon (Si), % | 0.15 to 0.35 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.035 | |
| 0 to 0.010 |