S20910 Stainless Steel vs. EN 1.7221 Steel
Both S20910 stainless steel and EN 1.7221 steel are iron alloys. They have 59% of their average alloy composition in common. There are 28 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 S20910 stainless steel and the bottom bar is EN 1.7221 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 230 to 290 | |
| 200 to 230 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 14 to 39 | |
| 11 to 17 |
| Fatigue Strength, MPa | 310 to 460 | |
| 290 to 390 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 79 | |
| 73 |
| Tensile Strength: Ultimate (UTS), MPa | 780 to 940 | |
| 650 to 780 |
| Tensile Strength: Yield (Proof), MPa | 430 to 810 | |
| 430 to 630 |
Thermal Properties
| Latent Heat of Fusion, J/g | 300 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 1080 | |
| 420 |
| Melting Completion (Liquidus), °C | 1420 | |
| 1460 |
| Melting Onset (Solidus), °C | 1380 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 470 |
| Thermal Conductivity, W/m-K | 13 | |
| 44 |
| Thermal Expansion, µm/m-K | 16 | |
| 13 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 22 | |
| 2.4 |
| Density, g/cm3 | 7.8 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 4.8 | |
| 1.5 |
| Embodied Energy, MJ/kg | 68 | |
| 20 |
| Embodied Water, L/kg | 180 | |
| 51 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 120 to 260 | |
| 83 to 98 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 460 to 1640 | |
| 490 to 1050 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 28 to 33 | |
| 23 to 27 |
| Strength to Weight: Bending, points | 24 to 27 | |
| 21 to 24 |
| Thermal Diffusivity, mm2/s | 3.6 | |
| 12 |
| Thermal Shock Resistance, points | 17 to 21 | |
| 19 to 23 |
Alloy Composition
| Carbon (C), % | 0 to 0.060 | |
| 0.22 to 0.29 |
| Chromium (Cr), % | 20.5 to 23.5 | |
| 0.8 to 1.2 |
| Iron (Fe), % | 52.1 to 62.1 | |
| 96.8 to 98.3 |
| Manganese (Mn), % | 4.0 to 6.0 | |
| 0.5 to 0.8 |
| Molybdenum (Mo), % | 1.5 to 3.0 | |
| 0.15 to 0.3 |
| Nickel (Ni), % | 11.5 to 13.5 | |
| 0 |
| Niobium (Nb), % | 0.1 to 0.3 | |
| 0 |
| Nitrogen (N), % | 0.2 to 0.4 | |
| 0 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.025 |
| Silicon (Si), % | 0 to 0.75 | |
| 0 to 0.6 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.030 |
| Vanadium (V), % | 0.1 to 0.3 | |
| 0 |