AISI 440A Stainless Steel vs. EN 1.6220 Steel
Both AISI 440A stainless steel and EN 1.6220 steel are iron alloys. They have 82% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.
For each property being compared, the top bar is AISI 440A stainless steel and the bottom bar is EN 1.6220 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 5.0 to 20 | |
| 23 to 25 |
| Fatigue Strength, MPa | 270 to 790 | |
| 240 to 250 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 77 | |
| 73 |
| Tensile Strength: Ultimate (UTS), MPa | 730 to 1790 | |
| 550 to 580 |
| Tensile Strength: Yield (Proof), MPa | 420 to 1650 | |
| 340 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 760 | |
| 400 |
| Melting Completion (Liquidus), °C | 1480 | |
| 1460 |
| Melting Onset (Solidus), °C | 1370 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 470 |
| Thermal Conductivity, W/m-K | 23 | |
| 52 |
| Thermal Expansion, µm/m-K | 10 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.5 | |
| 7.3 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.9 | |
| 8.4 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 9.0 | |
| 2.1 |
| Density, g/cm3 | 7.7 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 2.2 | |
| 1.5 |
| Embodied Energy, MJ/kg | 31 | |
| 19 |
| Embodied Water, L/kg | 120 | |
| 48 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 87 to 120 | |
| 110 to 120 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 26 to 65 | |
| 19 to 20 |
| Strength to Weight: Bending, points | 23 to 43 | |
| 19 to 20 |
| Thermal Diffusivity, mm2/s | 6.2 | |
| 14 |
| Thermal Shock Resistance, points | 26 to 65 | |
| 16 to 17 |
Alloy Composition
| Carbon (C), % | 0.6 to 0.75 | |
| 0.17 to 0.23 |
| Chromium (Cr), % | 16 to 18 | |
| 0 |
| Iron (Fe), % | 78.4 to 83.4 | |
| 96.7 to 98.8 |
| Manganese (Mn), % | 0 to 1.0 | |
| 1.0 to 1.6 |
| Molybdenum (Mo), % | 0 to 0.75 | |
| 0 |
| Nickel (Ni), % | 0 | |
| 0 to 0.8 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.020 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 0.6 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.030 |