EN 1.1191 Steel vs. S21800 Stainless Steel
Both EN 1.1191 steel and S21800 stainless steel are iron alloys. They have 64% 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 EN 1.1191 steel and the bottom bar is S21800 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 180 to 200 | |
| 210 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 16 to 17 | |
| 40 |
| Fatigue Strength, MPa | 210 to 290 | |
| 330 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Shear Modulus, GPa | 72 | |
| 75 |
| Shear Strength, MPa | 380 to 430 | |
| 510 |
| Tensile Strength: Ultimate (UTS), MPa | 630 to 700 | |
| 740 |
| Tensile Strength: Yield (Proof), MPa | 310 to 440 | |
| 390 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 340 |
| Maximum Temperature: Mechanical, °C | 400 | |
| 900 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1360 |
| Melting Onset (Solidus), °C | 1420 | |
| 1310 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 500 |
| Thermal Expansion, µm/m-K | 12 | |
| 16 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 2.1 | |
| 15 |
| Density, g/cm3 | 7.8 | |
| 7.5 |
| Embodied Carbon, kg CO2/kg material | 1.4 | |
| 3.1 |
| Embodied Energy, MJ/kg | 19 | |
| 45 |
| Embodied Water, L/kg | 47 | |
| 150 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 83 to 100 | |
| 250 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 260 to 510 | |
| 390 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 26 |
| Strength to Weight: Axial, points | 22 to 25 | |
| 27 |
| Strength to Weight: Bending, points | 21 to 22 | |
| 24 |
| Thermal Shock Resistance, points | 20 to 22 | |
| 17 |
Alloy Composition
| Carbon (C), % | 0.42 to 0.5 | |
| 0 to 0.1 |
| Chromium (Cr), % | 0 to 0.4 | |
| 16 to 18 |
| Iron (Fe), % | 97.3 to 99.08 | |
| 59.1 to 65.4 |
| Manganese (Mn), % | 0.5 to 0.8 | |
| 7.0 to 9.0 |
| Molybdenum (Mo), % | 0 to 0.1 | |
| 0 |
| Nickel (Ni), % | 0 to 0.4 | |
| 8.0 to 9.0 |
| Nitrogen (N), % | 0 | |
| 0.080 to 0.18 |
| Phosphorus (P), % | 0 to 0.035 | |
| 0 to 0.060 |
| Silicon (Si), % | 0 to 0.4 | |
| 3.5 to 4.5 |
| Sulfur (S), % | 0 to 0.035 | |
| 0 to 0.030 |