EN 1.7703 Steel vs. S17400 Stainless Steel
Both EN 1.7703 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 1.7703 steel and the bottom bar is S17400 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 200 to 210 | |
| 280 to 440 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 20 | |
| 11 to 21 |
| Fatigue Strength, MPa | 320 to 340 | |
| 380 to 670 |
| Impact Strength: V-Notched Charpy, J | 46 | |
| 7.6 to 86 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Shear Modulus, GPa | 74 | |
| 75 |
| Shear Strength, MPa | 420 to 430 | |
| 570 to 830 |
| Tensile Strength: Ultimate (UTS), MPa | 670 to 690 | |
| 910 to 1390 |
| Tensile Strength: Yield (Proof), MPa | 460 to 500 | |
| 580 to 1250 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 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 | 4.2 | |
| 14 |
| Density, g/cm3 | 7.9 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 2.5 | |
| 2.7 |
| Embodied Energy, MJ/kg | 35 | |
| 39 |
| Embodied Water, L/kg | 61 | |
| 130 |
Common Calculations
| PREN (Pitting Resistance) | 5.6 | |
| 16 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 120 to 130 | |
| 140 to 160 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 570 to 650 | |
| 880 to 4060 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 25 |
| Strength to Weight: Axial, points | 24 | |
| 32 to 49 |
| Strength to Weight: Bending, points | 22 | |
| 27 to 35 |
| Thermal Diffusivity, mm2/s | 11 | |
| 4.5 |
| Thermal Shock Resistance, points | 19 to 20 | |
| 30 to 46 |
Alloy Composition
| Carbon (C), % | 0.11 to 0.15 | |
| 0 to 0.070 |
| Chromium (Cr), % | 2.0 to 2.5 | |
| 15 to 17 |
| Copper (Cu), % | 0 to 0.2 | |
| 3.0 to 5.0 |
| Iron (Fe), % | 94.6 to 96.4 | |
| 70.4 to 78.9 |
| Manganese (Mn), % | 0.3 to 0.6 | |
| 0 to 1.0 |
| Molybdenum (Mo), % | 0.9 to 1.1 | |
| 0 |
| Nickel (Ni), % | 0 to 0.25 | |
| 3.0 to 5.0 |
| Niobium (Nb), % | 0 to 0.070 | |
| 0.15 to 0.45 |
| Nitrogen (N), % | 0 to 0.012 | |
| 0 |
| Phosphorus (P), % | 0 to 0.015 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 0.1 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.0050 | |
| 0 to 0.030 |
| Titanium (Ti), % | 0 to 0.030 | |
| 0 |
| Vanadium (V), % | 0.25 to 0.35 | |
| 0 |