| CHEMICAL COMPOSITION (%) – INCONEL FASTENERS (COMPARISON) | |||||
|---|---|---|---|---|---|
| Element | Inconel 600 | Inconel 601 | Inconel 625 | Inconel 718 | Inconel 800 / 800H |
| Nickel (Ni) | 72.0 min | 58.0–63.0 | 58.0 min | 50.0–55.0 | 30.0–35.0 |
| Chromium (Cr) | 14.0–17.0 | 21.0–25.0 | 20.0–23.0 | 17.0–21.0 | 19.0–23.0 |
| Iron (Fe) | 6.0–10.0 | Balance | 5.0 max | Balance | Balance |
| Molybdenum (Mo) | — | — | 8.0–10.0 | 2.8–3.3 | — |
| Niobium + Tantalum (Nb+Ta) | — | — | 3.15–4.15 | 4.75–5.50 | — |
| Aluminum (Al) | — | 1.0–1.7 | — | 0.20–0.80 | — |
| Titanium (Ti) | — | — | — | 0.65–1.15 | (Al+Ti) 0.30–1.20 |
| Carbon (C) | 0.15 max | 0.10 max | 0.10 max | 0.08 max | 0.10 max |
| Manganese (Mn) | 1.0 max | 1.0 max | 0.50 max | 0.35 max | 1.50 max |
| MECHANICAL PROPERTIES – INCONEL FASTENERS (ROOM TEMPERATURE) | |||||
|---|---|---|---|---|---|
| Property | Inconel 600 (Annealed) | Inconel 601 (Annealed) | Inconel 625 (Annealed) | Inconel 718 (Age Hardened) | Inconel 800 / 800H |
| Tensile Strength (MPa) | ≥ 550 | ≥ 650 | ≥ 827 | ≥ 1240 | ≥ 450 |
| Yield Strength 0.2% (MPa) | ≥ 240 | ≥ 300 | ≥ 414 | ≥ 1030 | ≥ 170 |
| Elongation (%) | ≥ 30 | ≥ 30 | ≥ 30 | ≥ 12 | ≥ 30 |
| Hardness | 70–85 HRB | ≤ 85 HRB | ≤ 90 HRB | 35–45 HRC | ≤ 85 HRB |
| DIMENSIONAL SPECIFICATIONS (AS PER DRAWING) | |||
|---|---|---|---|
| Nominal Size | Head Width (Across Flats) | Head Height (k) | Thread Pitch |
| M4 | 7.0 mm [0.276"] | 2.8 mm [0.110"] | 0.7 mm |