S17400 Stainless Steel vs. S20910 Stainless Steel
Both S17400 stainless steel and S20910 stainless steel are iron alloys. They have 78% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.
For each property being compared, the top bar is S17400 stainless steel and the bottom bar is S20910 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 280 to 440 | |
| 230 to 290 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 200 |
| Elongation at Break, % | 11 to 21 | |
| 14 to 39 |
| Fatigue Strength, MPa | 380 to 670 | |
| 310 to 460 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Reduction in Area, % | 40 to 62 | |
| 56 to 62 |
| Shear Modulus, GPa | 75 | |
| 79 |
| Shear Strength, MPa | 570 to 830 | |
| 500 to 570 |
| Tensile Strength: Ultimate (UTS), MPa | 910 to 1390 | |
| 780 to 940 |
| Tensile Strength: Yield (Proof), MPa | 580 to 1250 | |
| 430 to 810 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 300 |
| Maximum Temperature: Corrosion, °C | 450 | |
| 460 |
| Maximum Temperature: Mechanical, °C | 850 | |
| 1080 |
| Melting Completion (Liquidus), °C | 1440 | |
| 1420 |
| Melting Onset (Solidus), °C | 1400 | |
| 1380 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 480 |
| Thermal Conductivity, W/m-K | 17 | |
| 13 |
| Thermal Expansion, µm/m-K | 11 | |
| 16 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 14 | |
| 22 |
| Density, g/cm3 | 7.8 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 2.7 | |
| 4.8 |
| Embodied Energy, MJ/kg | 39 | |
| 68 |
| Embodied Water, L/kg | 130 | |
| 180 |
Common Calculations
| PREN (Pitting Resistance) | 16 | |
| 34 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 140 to 160 | |
| 120 to 260 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 880 to 4060 | |
| 460 to 1640 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 32 to 49 | |
| 28 to 33 |
| Strength to Weight: Bending, points | 27 to 35 | |
| 24 to 27 |
| Thermal Diffusivity, mm2/s | 4.5 | |
| 3.6 |
| Thermal Shock Resistance, points | 30 to 46 | |
| 17 to 21 |
Alloy Composition
| Carbon (C), % | 0 to 0.070 | |
| 0 to 0.060 |
| Chromium (Cr), % | 15 to 17 | |
| 20.5 to 23.5 |
| Copper (Cu), % | 3.0 to 5.0 | |
| 0 |
| Iron (Fe), % | 70.4 to 78.9 | |
| 52.1 to 62.1 |
| Manganese (Mn), % | 0 to 1.0 | |
| 4.0 to 6.0 |
| Molybdenum (Mo), % | 0 | |
| 1.5 to 3.0 |
| Nickel (Ni), % | 3.0 to 5.0 | |
| 11.5 to 13.5 |
| Niobium (Nb), % | 0.15 to 0.45 | |
| 0.1 to 0.3 |
| Nitrogen (N), % | 0 | |
| 0.2 to 0.4 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 0.75 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.030 |
| Vanadium (V), % | 0 | |
| 0.1 to 0.3 |