EN 1.4945 Stainless Steel vs. EN 1.4401 Stainless Steel
Both EN 1.4945 stainless steel and EN 1.4401 stainless steel are iron alloys. They have a moderately high 91% of their average alloy composition in common. 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 1.4945 stainless steel and the bottom bar is EN 1.4401 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 200 to 220 | |
| 190 to 270 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 200 |
| Elongation at Break, % | 19 to 34 | |
| 14 to 40 |
| Fatigue Strength, MPa | 230 to 350 | |
| 200 to 320 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 77 | |
| 78 |
| Shear Strength, MPa | 430 to 460 | |
| 410 to 550 |
| Tensile Strength: Ultimate (UTS), MPa | 640 to 740 | |
| 600 to 900 |
| Tensile Strength: Yield (Proof), MPa | 290 to 550 | |
| 230 to 570 |
Thermal Properties
| Latent Heat of Fusion, J/g | 290 | |
| 290 |
| Maximum Temperature: Corrosion, °C | 520 | |
| 410 |
| Maximum Temperature: Mechanical, °C | 920 | |
| 950 |
| Melting Completion (Liquidus), °C | 1490 | |
| 1440 |
| Melting Onset (Solidus), °C | 1440 | |
| 1400 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Conductivity, W/m-K | 14 | |
| 15 |
| Thermal Expansion, µm/m-K | 17 | |
| 16 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.9 | |
| 2.3 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 3.2 | |
| 2.6 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 30 | |
| 19 |
| Density, g/cm3 | 8.1 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 5.0 | |
| 3.8 |
| Embodied Energy, MJ/kg | 73 | |
| 52 |
| Embodied Water, L/kg | 150 | |
| 150 |
Common Calculations
| PREN (Pitting Resistance) | 23 | |
| 26 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 130 to 180 | |
| 110 to 190 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 210 to 760 | |
| 130 to 800 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 25 |
| Strength to Weight: Axial, points | 22 to 25 | |
| 21 to 32 |
| Strength to Weight: Bending, points | 20 to 22 | |
| 20 to 26 |
| Thermal Diffusivity, mm2/s | 3.7 | |
| 4.0 |
| Thermal Shock Resistance, points | 14 to 16 | |
| 13 to 20 |
Alloy Composition
| Carbon (C), % | 0.040 to 0.1 | |
| 0 to 0.070 |
| Chromium (Cr), % | 15.5 to 17.5 | |
| 16.5 to 18.5 |
| Iron (Fe), % | 57.9 to 65.7 | |
| 62.8 to 71.5 |
| Manganese (Mn), % | 0 to 1.5 | |
| 0 to 2.0 |
| Molybdenum (Mo), % | 0 | |
| 2.0 to 2.5 |
| Nickel (Ni), % | 15.5 to 17.5 | |
| 10 to 13 |
| Niobium (Nb), % | 0.4 to 1.2 | |
| 0 |
| Nitrogen (N), % | 0.060 to 0.14 | |
| 0 to 0.1 |
| Phosphorus (P), % | 0 to 0.035 | |
| 0 to 0.045 |
| Silicon (Si), % | 0.3 to 0.6 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.015 |
| Tungsten (W), % | 2.5 to 3.5 | |
| 0 |