S31730 Stainless Steel vs. EN 1.4740 Stainless Steel
Both S31730 stainless steel and EN 1.4740 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 76% of their average alloy composition in common. There are 20 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.
For each property being compared, the top bar is S31730 stainless steel and the bottom bar is EN 1.4740 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 180 | |
| 260 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 200 |
| Elongation at Break, % | 40 | |
| 22 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 77 | |
| 77 |
Thermal Properties
| Latent Heat of Fusion, J/g | 290 | |
| 300 |
| Maximum Temperature: Corrosion, °C | 420 | |
| 410 |
| Maximum Temperature: Mechanical, °C | 990 | |
| 900 |
| Melting Completion (Liquidus), °C | 1430 | |
| 1420 |
| Melting Onset (Solidus), °C | 1390 | |
| 1370 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 490 |
| Thermal Expansion, µm/m-K | 16 | |
| 10 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 24 | |
| 9.5 |
| Density, g/cm3 | 8.0 | |
| 7.6 |
| Embodied Carbon, kg CO2/kg material | 4.6 | |
| 2.3 |
| Embodied Energy, MJ/kg | 63 | |
| 32 |
| Embodied Water, L/kg | 180 | |
| 120 |
Common Calculations
| PREN (Pitting Resistance) | 30 | |
| 18 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 25 |
Alloy Composition
| Carbon (C), % | 0 to 0.030 | |
| 0.3 to 0.5 |
| Chromium (Cr), % | 17 to 19 | |
| 16 to 19 |
| Copper (Cu), % | 4.0 to 5.0 | |
| 0 |
| Iron (Fe), % | 52.4 to 61 | |
| 75.4 to 82.7 |
| Manganese (Mn), % | 0 to 2.0 | |
| 0 to 1.0 |
| Molybdenum (Mo), % | 3.0 to 4.0 | |
| 0 to 0.5 |
| Nickel (Ni), % | 15 to 16.5 | |
| 0 to 1.0 |
| Nitrogen (N), % | 0 to 0.045 | |
| 0 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 1.0 | |
| 1.0 to 2.5 |
| Sulfur (S), % | 0 to 0.010 | |
| 0 to 0.030 |