EN 1.4020 Stainless Steel vs. AISI 309 Stainless Steel
Both EN 1.4020 stainless steel and AISI 309 stainless steel are iron alloys. They have 83% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.
For each property being compared, the top bar is EN 1.4020 stainless steel and the bottom bar is AISI 309 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 190 to 340 | |
| 180 to 210 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 200 |
| Elongation at Break, % | 13 to 34 | |
| 34 to 47 |
| Fatigue Strength, MPa | 340 to 540 | |
| 250 to 280 |
| Poisson's Ratio | 0.28 | |
| 0.27 |
| Shear Modulus, GPa | 77 | |
| 78 |
| Shear Strength, MPa | 510 to 680 | |
| 420 to 470 |
| Tensile Strength: Ultimate (UTS), MPa | 770 to 1130 | |
| 600 to 710 |
| Tensile Strength: Yield (Proof), MPa | 430 to 950 | |
| 260 to 350 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 290 |
| Maximum Temperature: Corrosion, °C | 410 | |
| 440 |
| Maximum Temperature: Mechanical, °C | 890 | |
| 980 |
| Melting Completion (Liquidus), °C | 1390 | |
| 1450 |
| Melting Onset (Solidus), °C | 1350 | |
| 1400 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 480 |
| Thermal Expansion, µm/m-K | 17 | |
| 15 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 11 | |
| 19 |
| Density, g/cm3 | 7.6 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 2.5 | |
| 3.6 |
| Embodied Energy, MJ/kg | 37 | |
| 51 |
| Embodied Water, L/kg | 150 | |
| 170 |
Common Calculations
| PREN (Pitting Resistance) | 23 | |
| 23 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 140 to 220 | |
| 200 to 230 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 460 to 2290 | |
| 170 to 310 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 28 to 41 | |
| 21 to 25 |
| Strength to Weight: Bending, points | 25 to 32 | |
| 20 to 23 |
| Thermal Shock Resistance, points | 16 to 23 | |
| 14 to 16 |
Alloy Composition
| Carbon (C), % | 0 to 0.15 | |
| 0 to 0.2 |
| Chromium (Cr), % | 16.5 to 19 | |
| 22 to 24 |
| Iron (Fe), % | 62.8 to 71.8 | |
| 58 to 66 |
| Manganese (Mn), % | 11 to 14 | |
| 0 to 2.0 |
| Nickel (Ni), % | 0.5 to 2.5 | |
| 12 to 15 |
| Nitrogen (N), % | 0.2 to 0.45 | |
| 0 |
| Phosphorus (P), % | 0 to 0.045 | |
| 0 to 0.045 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 0.75 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.030 |