N08020 Stainless Steel vs. S21904 Stainless Steel
Both N08020 stainless steel and S21904 stainless steel are iron alloys. They have 65% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.
For each property being compared, the top bar is N08020 stainless steel and the bottom bar is S21904 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 200 |
| Elongation at Break, % | 15 to 34 | |
| 17 to 51 |
| Fatigue Strength, MPa | 210 to 240 | |
| 380 to 550 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 77 | |
| 78 |
| Shear Strength, MPa | 380 to 410 | |
| 510 to 620 |
| Tensile Strength: Ultimate (UTS), MPa | 610 to 620 | |
| 700 to 1000 |
| Tensile Strength: Yield (Proof), MPa | 270 to 420 | |
| 390 to 910 |
Thermal Properties
| Latent Heat of Fusion, J/g | 300 | |
| 290 |
| Maximum Temperature: Corrosion, °C | 490 | |
| 430 |
| Maximum Temperature: Mechanical, °C | 1100 | |
| 980 |
| Melting Completion (Liquidus), °C | 1410 | |
| 1400 |
| Melting Onset (Solidus), °C | 1360 | |
| 1350 |
| Specific Heat Capacity, J/kg-K | 460 | |
| 480 |
| Thermal Conductivity, W/m-K | 12 | |
| 14 |
| Thermal Expansion, µm/m-K | 15 | |
| 17 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 1.6 | |
| 2.5 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 1.8 | |
| 2.9 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 38 | |
| 15 |
| Density, g/cm3 | 8.2 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 6.6 | |
| 3.0 |
| Embodied Energy, MJ/kg | 92 | |
| 43 |
| Embodied Water, L/kg | 220 | |
| 160 |
Common Calculations
| PREN (Pitting Resistance) | 28 | |
| 25 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 83 to 170 | |
| 160 to 310 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 180 to 440 | |
| 380 to 2070 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 25 |
| Strength to Weight: Axial, points | 21 | |
| 25 to 36 |
| Strength to Weight: Bending, points | 20 | |
| 23 to 29 |
| Thermal Diffusivity, mm2/s | 3.2 | |
| 3.8 |
| Thermal Shock Resistance, points | 15 | |
| 15 to 21 |
Alloy Composition
| Carbon (C), % | 0 to 0.070 | |
| 0 to 0.040 |
| Chromium (Cr), % | 19 to 21 | |
| 19 to 21.5 |
| Copper (Cu), % | 3.0 to 4.0 | |
| 0 |
| Iron (Fe), % | 29.9 to 44 | |
| 59.5 to 67.4 |
| Manganese (Mn), % | 0 to 2.0 | |
| 8.0 to 10 |
| Molybdenum (Mo), % | 2.0 to 3.0 | |
| 0 |
| Nickel (Ni), % | 32 to 38 | |
| 5.5 to 7.5 |
| Niobium (Nb), % | 0 to 1.0 | |
| 0 |
| Nitrogen (N), % | 0 | |
| 0.15 to 0.4 |
| Phosphorus (P), % | 0 to 0.045 | |
| 0 to 0.045 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.035 | |
| 0 to 0.030 |