EN 1.4477 Stainless Steel vs. AISI 440B Stainless Steel
Both EN 1.4477 stainless steel and AISI 440B stainless steel are iron alloys. They have 78% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.
For each property being compared, the top bar is EN 1.4477 stainless steel and the bottom bar is AISI 440B stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 210 | |
| 200 |
| Elongation at Break, % | 22 to 23 | |
| 3.0 to 18 |
| Fatigue Strength, MPa | 420 to 490 | |
| 260 to 850 |
| Poisson's Ratio | 0.27 | |
| 0.28 |
| Shear Modulus, GPa | 81 | |
| 77 |
| Shear Strength, MPa | 550 to 580 | |
| 460 to 1110 |
| Tensile Strength: Ultimate (UTS), MPa | 880 to 930 | |
| 740 to 1930 |
| Tensile Strength: Yield (Proof), MPa | 620 to 730 | |
| 430 to 1860 |
Thermal Properties
| Latent Heat of Fusion, J/g | 300 | |
| 280 |
| Maximum Temperature: Corrosion, °C | 460 | |
| 390 |
| Maximum Temperature: Mechanical, °C | 1100 | |
| 870 |
| Melting Completion (Liquidus), °C | 1430 | |
| 1480 |
| Melting Onset (Solidus), °C | 1380 | |
| 1370 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 480 |
| Thermal Conductivity, W/m-K | 13 | |
| 23 |
| Thermal Expansion, µm/m-K | 13 | |
| 10 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.2 | |
| 2.5 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.5 | |
| 2.9 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 20 | |
| 9.0 |
| Density, g/cm3 | 7.7 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 3.7 | |
| 2.2 |
| Embodied Energy, MJ/kg | 52 | |
| 31 |
| Embodied Water, L/kg | 190 | |
| 120 |
Common Calculations
| PREN (Pitting Resistance) | 41 | |
| 18 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 180 to 190 | |
| 57 to 110 |
| Stiffness to Weight: Axial, points | 15 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 31 to 33 | |
| 27 to 70 |
| Strength to Weight: Bending, points | 26 to 27 | |
| 24 to 45 |
| Thermal Diffusivity, mm2/s | 3.5 | |
| 6.1 |
| Thermal Shock Resistance, points | 23 to 25 | |
| 27 to 70 |
Alloy Composition
| Carbon (C), % | 0 to 0.030 | |
| 0.75 to 1.0 |
| Chromium (Cr), % | 28 to 30 | |
| 16 to 18 |
| Copper (Cu), % | 0 to 0.8 | |
| 0 |
| Iron (Fe), % | 56.6 to 63.6 | |
| 78.2 to 83.3 |
| Manganese (Mn), % | 0.8 to 1.5 | |
| 0 to 1.0 |
| Molybdenum (Mo), % | 1.5 to 2.6 | |
| 0 to 0.75 |
| Nickel (Ni), % | 5.8 to 7.5 | |
| 0 |
| Nitrogen (N), % | 0.3 to 0.4 | |
| 0 |
| Phosphorus (P), % | 0 to 0.030 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 0.5 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.015 |