EN 1.7380 Steel vs. AISI 317 Stainless Steel
Both EN 1.7380 steel and AISI 317 stainless steel are iron alloys. They have 67% of their average alloy composition in common. There are 32 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 1.7380 steel and the bottom bar is AISI 317 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 160 to 170 | |
| 170 to 220 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 200 |
| Elongation at Break, % | 19 to 20 | |
| 35 to 55 |
| Fatigue Strength, MPa | 200 to 230 | |
| 250 to 330 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Shear Modulus, GPa | 74 | |
| 79 |
| Shear Strength, MPa | 330 to 350 | |
| 420 to 470 |
| Tensile Strength: Ultimate (UTS), MPa | 540 to 550 | |
| 580 to 710 |
| Tensile Strength: Yield (Proof), MPa | 290 to 330 | |
| 250 to 420 |
Thermal Properties
| Latent Heat of Fusion, J/g | 260 | |
| 290 |
| Maximum Temperature: Mechanical, °C | 460 | |
| 590 |
| Melting Completion (Liquidus), °C | 1470 | |
| 1400 |
| Melting Onset (Solidus), °C | 1430 | |
| 1380 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Conductivity, W/m-K | 39 | |
| 15 |
| Thermal Expansion, µm/m-K | 13 | |
| 17 |
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 | |
| 21 |
| Density, g/cm3 | 7.9 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 1.8 | |
| 4.3 |
| Embodied Energy, MJ/kg | 23 | |
| 59 |
| Embodied Water, L/kg | 59 | |
| 160 |
Common Calculations
| PREN (Pitting Resistance) | 5.6 | |
| 31 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 87 to 98 | |
| 210 to 260 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 230 to 280 | |
| 150 to 430 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 25 |
| Strength to Weight: Axial, points | 19 to 20 | |
| 20 to 25 |
| Strength to Weight: Bending, points | 19 | |
| 20 to 22 |
| Thermal Diffusivity, mm2/s | 11 | |
| 4.1 |
| Thermal Shock Resistance, points | 15 to 16 | |
| 12 to 15 |
Alloy Composition
| Carbon (C), % | 0.080 to 0.14 | |
| 0 to 0.080 |
| Chromium (Cr), % | 2.0 to 2.5 | |
| 18 to 20 |
| Copper (Cu), % | 0 to 0.3 | |
| 0 |
| Iron (Fe), % | 94.6 to 96.6 | |
| 58 to 68 |
| Manganese (Mn), % | 0.4 to 0.8 | |
| 0 to 2.0 |
| Molybdenum (Mo), % | 0.9 to 1.1 | |
| 3.0 to 4.0 |
| Nickel (Ni), % | 0 | |
| 11 to 15 |
| Nitrogen (N), % | 0 to 0.012 | |
| 0 to 0.1 |
| Phosphorus (P), % | 0 to 0.020 | |
| 0 to 0.045 |
| Silicon (Si), % | 0 to 0.5 | |
| 0 to 0.75 |
| Sulfur (S), % | 0 to 0.010 | |
| 0 to 0.030 |