EN 1.4594 Stainless Steel vs. AISI 440C Stainless Steel
Both EN 1.4594 stainless steel and AISI 440C stainless steel are iron alloys. They have a moderately high 91% of their average alloy composition in common. There are 31 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 EN 1.4594 stainless steel and the bottom bar is AISI 440C stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 200 |
| Elongation at Break, % | 11 to 17 | |
| 2.0 to 14 |
| Fatigue Strength, MPa | 490 to 620 | |
| 260 to 840 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 76 | |
| 76 |
| Shear Strength, MPa | 620 to 700 | |
| 430 to 1120 |
| Tensile Strength: Ultimate (UTS), MPa | 1020 to 1170 | |
| 710 to 1970 |
| Tensile Strength: Yield (Proof), MPa | 810 to 1140 | |
| 450 to 1900 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 280 |
| Maximum Temperature: Corrosion, °C | 450 | |
| 390 |
| Maximum Temperature: Mechanical, °C | 820 | |
| 870 |
| Melting Completion (Liquidus), °C | 1450 | |
| 1480 |
| Melting Onset (Solidus), °C | 1410 | |
| 1370 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 480 |
| Thermal Conductivity, W/m-K | 16 | |
| 22 |
| Thermal Expansion, µm/m-K | 11 | |
| 10 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.2 | |
| 2.4 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.5 | |
| 2.8 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 15 | |
| 9.0 |
| Density, g/cm3 | 7.9 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 3.2 | |
| 2.2 |
| Embodied Energy, MJ/kg | 45 | |
| 31 |
| Embodied Water, L/kg | 130 | |
| 120 |
Common Calculations
| PREN (Pitting Resistance) | 19 | |
| 18 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 to 190 | |
| 39 to 88 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 36 to 41 | |
| 26 to 71 |
| Strength to Weight: Bending, points | 29 to 31 | |
| 23 to 46 |
| Thermal Diffusivity, mm2/s | 4.4 | |
| 6.0 |
| Thermal Shock Resistance, points | 34 to 39 | |
| 26 to 71 |
Alloy Composition
| Carbon (C), % | 0 to 0.070 | |
| 1.0 to 1.2 |
| Chromium (Cr), % | 13 to 15 | |
| 16 to 18 |
| Copper (Cu), % | 1.2 to 2.0 | |
| 0 |
| Iron (Fe), % | 72.6 to 79.5 | |
| 78 to 83.1 |
| Manganese (Mn), % | 0 to 1.0 | |
| 0 to 1.0 |
| Molybdenum (Mo), % | 1.2 to 2.0 | |
| 0 to 0.75 |
| Nickel (Ni), % | 5.0 to 6.0 | |
| 0 |
| Niobium (Nb), % | 0.15 to 0.6 | |
| 0 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 0.7 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.015 |