S21904 Stainless Steel vs. EN 1.4020 Stainless Steel
Both S21904 stainless steel and EN 1.4020 stainless steel are iron alloys. They have a moderately high 93% of their average alloy composition in common. There are 29 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 S21904 stainless steel and the bottom bar is EN 1.4020 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 210 to 300 | |
| 190 to 340 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 200 |
| Elongation at Break, % | 17 to 51 | |
| 13 to 34 |
| Fatigue Strength, MPa | 380 to 550 | |
| 340 to 540 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 78 | |
| 77 |
| Shear Strength, MPa | 510 to 620 | |
| 510 to 680 |
| Tensile Strength: Ultimate (UTS), MPa | 700 to 1000 | |
| 770 to 1130 |
| Tensile Strength: Yield (Proof), MPa | 390 to 910 | |
| 430 to 950 |
Thermal Properties
| Latent Heat of Fusion, J/g | 290 | |
| 280 |
| Maximum Temperature: Corrosion, °C | 430 | |
| 410 |
| Maximum Temperature: Mechanical, °C | 980 | |
| 890 |
| Melting Completion (Liquidus), °C | 1400 | |
| 1390 |
| Melting Onset (Solidus), °C | 1350 | |
| 1350 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 480 |
| Thermal Expansion, µm/m-K | 17 | |
| 17 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 15 | |
| 11 |
| Density, g/cm3 | 7.7 | |
| 7.6 |
| Embodied Carbon, kg CO2/kg material | 3.0 | |
| 2.5 |
| Embodied Energy, MJ/kg | 43 | |
| 37 |
| Embodied Water, L/kg | 160 | |
| 150 |
Common Calculations
| PREN (Pitting Resistance) | 25 | |
| 23 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 160 to 310 | |
| 140 to 220 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 380 to 2070 | |
| 460 to 2290 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 25 to 36 | |
| 28 to 41 |
| Strength to Weight: Bending, points | 23 to 29 | |
| 25 to 32 |
| Thermal Shock Resistance, points | 15 to 21 | |
| 16 to 23 |
Alloy Composition
| Carbon (C), % | 0 to 0.040 | |
| 0 to 0.15 |
| Chromium (Cr), % | 19 to 21.5 | |
| 16.5 to 19 |
| Iron (Fe), % | 59.5 to 67.4 | |
| 62.8 to 71.8 |
| Manganese (Mn), % | 8.0 to 10 | |
| 11 to 14 |
| Nickel (Ni), % | 5.5 to 7.5 | |
| 0.5 to 2.5 |
| Nitrogen (N), % | 0.15 to 0.4 | |
| 0.2 to 0.45 |
| Phosphorus (P), % | 0 to 0.045 | |
| 0 to 0.045 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.030 |