EN 1.7380 Steel vs. S17400 Stainless Steel
Both EN 1.7380 steel and S17400 stainless steel are iron alloys. They have 78% 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 1.7380 steel and the bottom bar is S17400 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 160 to 170 | |
| 280 to 440 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 19 to 20 | |
| 11 to 21 |
| Fatigue Strength, MPa | 200 to 230 | |
| 380 to 670 |
| Impact Strength: V-Notched Charpy, J | 31 to 35 | |
| 7.6 to 86 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Shear Modulus, GPa | 74 | |
| 75 |
| Shear Strength, MPa | 330 to 350 | |
| 570 to 830 |
| Tensile Strength: Ultimate (UTS), MPa | 540 to 550 | |
| 910 to 1390 |
| Tensile Strength: Yield (Proof), MPa | 290 to 330 | |
| 580 to 1250 |
Thermal Properties
| Latent Heat of Fusion, J/g | 260 | |
| 280 |
| Maximum Temperature: Mechanical, °C | 460 | |
| 850 |
| Melting Completion (Liquidus), °C | 1470 | |
| 1440 |
| Melting Onset (Solidus), °C | 1430 | |
| 1400 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 480 |
| Thermal Conductivity, W/m-K | 39 | |
| 17 |
| Thermal Expansion, µm/m-K | 13 | |
| 11 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.6 | |
| 2.3 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.7 | |
| 2.6 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 3.8 | |
| 14 |
| Density, g/cm3 | 7.9 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 1.8 | |
| 2.7 |
| Embodied Energy, MJ/kg | 23 | |
| 39 |
| Embodied Water, L/kg | 59 | |
| 130 |
Common Calculations
| PREN (Pitting Resistance) | 5.6 | |
| 16 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 87 to 98 | |
| 140 to 160 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 230 to 280 | |
| 880 to 4060 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 25 |
| Strength to Weight: Axial, points | 19 to 20 | |
| 32 to 49 |
| Strength to Weight: Bending, points | 19 | |
| 27 to 35 |
| Thermal Diffusivity, mm2/s | 11 | |
| 4.5 |
| Thermal Shock Resistance, points | 15 to 16 | |
| 30 to 46 |
Alloy Composition
| Carbon (C), % | 0.080 to 0.14 | |
| 0 to 0.070 |
| Chromium (Cr), % | 2.0 to 2.5 | |
| 15 to 17 |
| Copper (Cu), % | 0 to 0.3 | |
| 3.0 to 5.0 |
| Iron (Fe), % | 94.6 to 96.6 | |
| 70.4 to 78.9 |
| Manganese (Mn), % | 0.4 to 0.8 | |
| 0 to 1.0 |
| Molybdenum (Mo), % | 0.9 to 1.1 | |
| 0 |
| Nickel (Ni), % | 0 | |
| 3.0 to 5.0 |
| Niobium (Nb), % | 0 | |
| 0.15 to 0.45 |
| Nitrogen (N), % | 0 to 0.012 | |
| 0 |
| Phosphorus (P), % | 0 to 0.020 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 0.5 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.010 | |
| 0 to 0.030 |