S20910 Stainless Steel vs. AISI 431 Stainless Steel
Both S20910 stainless steel and AISI 431 stainless steel are iron alloys. They have 76% of their average alloy composition in common. There are 31 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 S20910 stainless steel and the bottom bar is AISI 431 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 230 to 290 | |
| 250 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 200 |
| Elongation at Break, % | 14 to 39 | |
| 15 to 17 |
| Fatigue Strength, MPa | 310 to 460 | |
| 430 to 610 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 79 | |
| 77 |
| Shear Strength, MPa | 500 to 570 | |
| 550 to 840 |
| Tensile Strength: Ultimate (UTS), MPa | 780 to 940 | |
| 890 to 1380 |
| Tensile Strength: Yield (Proof), MPa | 430 to 810 | |
| 710 to 1040 |
Thermal Properties
| Latent Heat of Fusion, J/g | 300 | |
| 280 |
| Maximum Temperature: Corrosion, °C | 460 | |
| 400 |
| Maximum Temperature: Mechanical, °C | 1080 | |
| 850 |
| Melting Completion (Liquidus), °C | 1420 | |
| 1510 |
| Melting Onset (Solidus), °C | 1380 | |
| 1450 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 480 |
| Thermal Conductivity, W/m-K | 13 | |
| 26 |
| Thermal Expansion, µm/m-K | 16 | |
| 12 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 22 | |
| 9.0 |
| Density, g/cm3 | 7.8 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 4.8 | |
| 2.2 |
| Embodied Energy, MJ/kg | 68 | |
| 31 |
| Embodied Water, L/kg | 180 | |
| 120 |
Common Calculations
| PREN (Pitting Resistance) | 34 | |
| 16 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 120 to 260 | |
| 140 to 180 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 460 to 1640 | |
| 1270 to 2770 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 28 to 33 | |
| 32 to 50 |
| Strength to Weight: Bending, points | 24 to 27 | |
| 27 to 36 |
| Thermal Diffusivity, mm2/s | 3.6 | |
| 7.0 |
| Thermal Shock Resistance, points | 17 to 21 | |
| 28 to 43 |
Alloy Composition
| Carbon (C), % | 0 to 0.060 | |
| 0 to 0.2 |
| Chromium (Cr), % | 20.5 to 23.5 | |
| 15 to 17 |
| Iron (Fe), % | 52.1 to 62.1 | |
| 78.2 to 83.8 |
| Manganese (Mn), % | 4.0 to 6.0 | |
| 0 to 1.0 |
| Molybdenum (Mo), % | 1.5 to 3.0 | |
| 0 |
| Nickel (Ni), % | 11.5 to 13.5 | |
| 1.3 to 2.5 |
| Niobium (Nb), % | 0.1 to 0.3 | |
| 0 |
| Nitrogen (N), % | 0.2 to 0.4 | |
| 0 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 0.75 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.030 |
| Vanadium (V), % | 0.1 to 0.3 | |
| 0 |