EN 1.4640 Stainless Steel vs. S17400 Stainless Steel
Both EN 1.4640 stainless steel and S17400 stainless steel are iron alloys. They have a moderately high 93% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.
For each property being compared, the top bar is EN 1.4640 stainless steel and the bottom bar is S17400 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 190 to 200 | |
| 280 to 440 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 51 | |
| 11 to 21 |
| Fatigue Strength, MPa | 230 to 250 | |
| 380 to 670 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 77 | |
| 75 |
| Shear Strength, MPa | 440 to 460 | |
| 570 to 830 |
| Tensile Strength: Ultimate (UTS), MPa | 620 to 650 | |
| 910 to 1390 |
| Tensile Strength: Yield (Proof), MPa | 240 to 260 | |
| 580 to 1250 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 280 |
| Maximum Temperature: Corrosion, °C | 420 | |
| 450 |
| Maximum Temperature: Mechanical, °C | 930 | |
| 850 |
| Melting Completion (Liquidus), °C | 1420 | |
| 1440 |
| Melting Onset (Solidus), °C | 1380 | |
| 1400 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 480 |
| Thermal Conductivity, W/m-K | 15 | |
| 17 |
| Thermal Expansion, µm/m-K | 16 | |
| 11 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.4 | |
| 2.3 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.7 | |
| 2.6 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 14 | |
| 14 |
| Density, g/cm3 | 7.8 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 2.8 | |
| 2.7 |
| Embodied Energy, MJ/kg | 40 | |
| 39 |
| Embodied Water, L/kg | 150 | |
| 130 |
Common Calculations
| PREN (Pitting Resistance) | 20 | |
| 16 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 250 to 260 | |
| 140 to 160 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 150 to 170 | |
| 880 to 4060 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 22 to 23 | |
| 32 to 49 |
| Strength to Weight: Bending, points | 21 | |
| 27 to 35 |
| Thermal Diffusivity, mm2/s | 4.0 | |
| 4.5 |
| Thermal Shock Resistance, points | 14 to 15 | |
| 30 to 46 |
Alloy Composition
| Carbon (C), % | 0.030 to 0.080 | |
| 0 to 0.070 |
| Chromium (Cr), % | 18 to 19 | |
| 15 to 17 |
| Copper (Cu), % | 1.3 to 2.0 | |
| 3.0 to 5.0 |
| Iron (Fe), % | 67.4 to 73.6 | |
| 70.4 to 78.9 |
| Manganese (Mn), % | 1.5 to 4.0 | |
| 0 to 1.0 |
| Nickel (Ni), % | 5.5 to 6.9 | |
| 3.0 to 5.0 |
| Niobium (Nb), % | 0 | |
| 0.15 to 0.45 |
| Nitrogen (N), % | 0.030 to 0.11 | |
| 0 |
| Phosphorus (P), % | 0 to 0.045 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 0.5 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.030 |