EN 1.4404 +AT Steel vs. EN 1.4594 +AT Steel
Both EN 1.4404 +AT steel and EN 1.4594 +AT steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have 89% 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 1.4404 +AT steel and the bottom bar is EN 1.4594 +AT steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 190 | |
| 320 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 200 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 78 | |
| 76 |
| Tensile Strength: Ultimate (UTS), MPa | 600 | |
| 1030 |
Thermal Properties
| Latent Heat of Fusion, J/g | 290 | |
| 280 |
| Maximum Temperature: Corrosion, °C | 410 | |
| 450 |
| Maximum Temperature: Mechanical, °C | 950 | |
| 820 |
| Melting Completion (Liquidus), °C | 1440 | |
| 1450 |
| Melting Onset (Solidus), °C | 1400 | |
| 1410 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Conductivity, W/m-K | 15 | |
| 16 |
| Thermal Expansion, µm/m-K | 16 | |
| 11 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.3 | |
| 2.2 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.6 | |
| 2.5 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 19 | |
| 15 |
| Density, g/cm3 | 7.9 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 3.8 | |
| 3.2 |
| Embodied Energy, MJ/kg | 52 | |
| 45 |
| Embodied Water, L/kg | 150 | |
| 130 |
Common Calculations
| PREN (Pitting Resistance) | 26 | |
| 19 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 210 | |
| 110 to 190 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 140 | |
| 1660 to 3320 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 21 | |
| 36 |
| Strength to Weight: Bending, points | 20 | |
| 29 |
| Thermal Diffusivity, mm2/s | 4.0 | |
| 4.4 |
| Thermal Shock Resistance, points | 13 | |
| 35 |
Alloy Composition
| Carbon (C), % | 0 to 0.030 | |
| 0 to 0.070 |
| Chromium (Cr), % | 16.5 to 18.5 | |
| 13 to 15 |
| Copper (Cu), % | 0 | |
| 1.2 to 2.0 |
| Iron (Fe), % | 62.8 to 71.5 | |
| 72.6 to 79.5 |
| Manganese (Mn), % | 0 to 2.0 | |
| 0 to 1.0 |
| Molybdenum (Mo), % | 2.0 to 2.5 | |
| 1.2 to 2.0 |
| Nickel (Ni), % | 10 to 13 | |
| 5.0 to 6.0 |
| Niobium (Nb), % | 0 | |
| 0.15 to 0.6 |
| Nitrogen (N), % | 0 to 0.1 | |
| 0 |
| Phosphorus (P), % | 0 to 0.045 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 0.7 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.015 |