| 347 Stainless Steel (annealed condition) | ||
| Minimum Properties | Ultimate Tensile Strength, psi | 95,000 |
| Yield Strength, psi | 39,900 | |
| Elongation | 45% | |
| Rockwell Hardness | B85 | |
| Chemistry | Iron (Fe) | 68% |
| Carbon (C) | 0.08% max | |
| Chrome (Cr) | 17% | |
| Manganese (Mn) | 2% | |
| Nickel (Ni) | 11% | |
| Niobium (Nb) + Tantalum (Ta) | 0.8% | |
| Phosphorus (P) | 0.045% max | |
| Sulphur (S) | 0.03% | |
| Silicon (Si) | 1% | |