EN 1.4401 Stainless Steel vs. S17700 Stainless Steel
Both EN 1.4401 stainless steel and S17700 stainless steel are iron alloys. They have a moderately high 92% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.
For each property being compared, the top bar is EN 1.4401 stainless steel and the bottom bar is S17700 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 190 to 270 | |
| 180 to 430 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 200 |
| Elongation at Break, % | 14 to 40 | |
| 1.0 to 23 |
| Fatigue Strength, MPa | 200 to 320 | |
| 290 to 560 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 78 | |
| 76 |
| Shear Strength, MPa | 410 to 550 | |
| 740 to 940 |
| Tensile Strength: Ultimate (UTS), MPa | 600 to 900 | |
| 1180 to 1650 |
| Tensile Strength: Yield (Proof), MPa | 230 to 570 | |
| 430 to 1210 |
Thermal Properties
| Latent Heat of Fusion, J/g | 290 | |
| 290 |
| Maximum Temperature: Corrosion, °C | 410 | |
| 410 |
| Maximum Temperature: Mechanical, °C | 950 | |
| 890 |
| Melting Completion (Liquidus), °C | 1440 | |
| 1440 |
| Melting Onset (Solidus), °C | 1400 | |
| 1400 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 480 |
| Thermal Conductivity, W/m-K | 15 | |
| 15 |
| Thermal Expansion, µm/m-K | 16 | |
| 11 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.3 | |
| 2.3 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.6 | |
| 2.7 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 19 | |
| 13 |
| Density, g/cm3 | 7.9 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 3.8 | |
| 2.8 |
| Embodied Energy, MJ/kg | 52 | |
| 40 |
| Embodied Water, L/kg | 150 | |
| 150 |
Common Calculations
| PREN (Pitting Resistance) | 26 | |
| 17 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 to 190 | |
| 15 to 210 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 130 to 800 | |
| 460 to 3750 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 21 to 32 | |
| 42 to 59 |
| Strength to Weight: Bending, points | 20 to 26 | |
| 32 to 40 |
| Thermal Diffusivity, mm2/s | 4.0 | |
| 4.1 |
| Thermal Shock Resistance, points | 13 to 20 | |
| 39 to 54 |
Alloy Composition
| Aluminum (Al), % | 0 | |
| 0.75 to 1.5 |
| Carbon (C), % | 0 to 0.070 | |
| 0 to 0.090 |
| Chromium (Cr), % | 16.5 to 18.5 | |
| 16 to 18 |
| Iron (Fe), % | 62.8 to 71.5 | |
| 70.5 to 76.8 |
| Manganese (Mn), % | 0 to 2.0 | |
| 0 to 1.0 |
| Molybdenum (Mo), % | 2.0 to 2.5 | |
| 0 |
| Nickel (Ni), % | 10 to 13 | |
| 6.5 to 7.8 |
| 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 1.0 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.030 |