EN 1.4404 Stainless Steel vs. EN 1.4571 Stainless Steel
Both EN 1.4404 stainless steel and EN 1.4571 stainless steel are iron alloys. Their average alloy composition is basically identical. There are 33 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 1.4404 stainless steel and the bottom bar is EN 1.4571 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 190 to 270 | |
| 190 to 270 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 200 |
| Elongation at Break, % | 14 to 43 | |
| 14 to 40 |
| Fatigue Strength, MPa | 220 to 320 | |
| 200 to 330 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 78 | |
| 78 |
| Shear Strength, MPa | 420 to 550 | |
| 410 to 550 |
| Tensile Strength: Ultimate (UTS), MPa | 600 to 900 | |
| 600 to 900 |
| Tensile Strength: Yield (Proof), MPa | 240 to 570 | |
| 230 to 570 |
Thermal Properties
| Latent Heat of Fusion, J/g | 290 | |
| 290 |
| Maximum Temperature: Corrosion, °C | 410 | |
| 480 |
| Maximum Temperature: Mechanical, °C | 950 | |
| 950 |
| Melting Completion (Liquidus), °C | 1440 | |
| 1440 |
| Melting Onset (Solidus), °C | 1400 | |
| 1400 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Conductivity, W/m-K | 15 | |
| 15 |
| Thermal Expansion, µm/m-K | 16 | |
| 17 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.3 | |
| 2.3 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.6 | |
| 2.6 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 19 | |
| 19 |
| Density, g/cm3 | 7.9 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 3.8 | |
| 3.9 |
| Embodied Energy, MJ/kg | 52 | |
| 54 |
| Embodied Water, L/kg | 150 | |
| 150 |
Common Calculations
| PREN (Pitting Resistance) | 26 | |
| 25 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 to 210 | |
| 110 to 190 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 140 to 800 | |
| 130 to 820 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 21 to 32 | |
| 21 to 32 |
| Strength to Weight: Bending, points | 20 to 26 | |
| 20 to 26 |
| Thermal Diffusivity, mm2/s | 4.0 | |
| 4.0 |
| Thermal Shock Resistance, points | 13 to 20 | |
| 13 to 20 |
Alloy Composition
| Carbon (C), % | 0 to 0.030 | |
| 0 to 0.080 |
| Chromium (Cr), % | 16.5 to 18.5 | |
| 16.5 to 18.5 |
| Iron (Fe), % | 62.8 to 71.5 | |
| 61.7 to 71 |
| Manganese (Mn), % | 0 to 2.0 | |
| 0 to 2.0 |
| Molybdenum (Mo), % | 2.0 to 2.5 | |
| 2.0 to 2.5 |
| Nickel (Ni), % | 10 to 13 | |
| 10.5 to 13.5 |
| Nitrogen (N), % | 0 to 0.1 | |
| 0 |
| Phosphorus (P), % | 0 to 0.045 | |
| 0 to 0.045 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.015 |
| Titanium (Ti), % | 0 | |
| 0 to 0.7 |