EN 1.1191 Steel vs. S20910 Stainless Steel
Both EN 1.1191 steel and S20910 stainless steel are iron alloys. They have 58% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.
For each property being compared, the top bar is EN 1.1191 steel and the bottom bar is S20910 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 180 to 200 | |
| 230 to 290 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 200 |
| Elongation at Break, % | 16 to 17 | |
| 14 to 39 |
| Fatigue Strength, MPa | 210 to 290 | |
| 310 to 460 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Shear Modulus, GPa | 72 | |
| 79 |
| Shear Strength, MPa | 380 to 430 | |
| 500 to 570 |
| Tensile Strength: Ultimate (UTS), MPa | 630 to 700 | |
| 780 to 940 |
| Tensile Strength: Yield (Proof), MPa | 310 to 440 | |
| 430 to 810 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 300 |
| Maximum Temperature: Mechanical, °C | 400 | |
| 1080 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1420 |
| Melting Onset (Solidus), °C | 1420 | |
| 1380 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 480 |
| Thermal Conductivity, W/m-K | 48 | |
| 13 |
| Thermal Expansion, µm/m-K | 12 | |
| 16 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 2.1 | |
| 22 |
| Density, g/cm3 | 7.8 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 1.4 | |
| 4.8 |
| Embodied Energy, MJ/kg | 19 | |
| 68 |
| Embodied Water, L/kg | 47 | |
| 180 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 83 to 100 | |
| 120 to 260 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 260 to 510 | |
| 460 to 1640 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 25 |
| Strength to Weight: Axial, points | 22 to 25 | |
| 28 to 33 |
| Strength to Weight: Bending, points | 21 to 22 | |
| 24 to 27 |
| Thermal Diffusivity, mm2/s | 13 | |
| 3.6 |
| Thermal Shock Resistance, points | 20 to 22 | |
| 17 to 21 |
Alloy Composition
| Carbon (C), % | 0.42 to 0.5 | |
| 0 to 0.060 |
| Chromium (Cr), % | 0 to 0.4 | |
| 20.5 to 23.5 |
| Iron (Fe), % | 97.3 to 99.08 | |
| 52.1 to 62.1 |
| Manganese (Mn), % | 0.5 to 0.8 | |
| 4.0 to 6.0 |
| Molybdenum (Mo), % | 0 to 0.1 | |
| 1.5 to 3.0 |
| Nickel (Ni), % | 0 to 0.4 | |
| 11.5 to 13.5 |
| Niobium (Nb), % | 0 | |
| 0.1 to 0.3 |
| Nitrogen (N), % | 0 | |
| 0.2 to 0.4 |
| Phosphorus (P), % | 0 to 0.035 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 0.4 | |
| 0 to 0.75 |
| Sulfur (S), % | 0 to 0.035 | |
| 0 to 0.030 |
| Vanadium (V), % | 0 | |
| 0.1 to 0.3 |