Inconel® 617 is a nickel-chromium-cobalt-molybdenum alloy, with a similar high temperature resistance to Inconel® 600/601 with improved strength, while offering comparable corrosion resistance to Inconel® 625. On top of its combination of stability, strength and oxidation resistance at high temperatures, Inconel® 617 also provides resistance in several corrosive aqueous environments.
| Element | Min % | Max % |
| Ni | 44.5 | – |
| Cr | 20 | 24.00 |
| Co | 10 | 15 |
| Mo | 8 | 10 |
| Al | 0.8 | 1.50 |
| C | 0.05 | 0.15 |
| Fe | – | 3 |
| Mn | – | 1 |
| Si | – | 1.00 |
| S | – | 0.015 |
| Ti | – | 0.6 |
| Cu | – | 0.5 |
| B | – | 0.006 |
Density
8.36g/cm³ | 0.302 lb/in³
Melting Point
1330 – 1380 °C | 2430 – 2510 °F
Coefficient of Expansion
11.6 μm/m °C (20 – 100 °C) | 7.0 x 10-6 in/in °F (70 – 212 °F)
Modulus of Rigidity
81 kN/mm² | 11.8 ksi
Modulus of Elasticity
212.0 kN/mm² | 30700 ksi
Heat Treatment of Finished Parts
| Condition as supplied by Alloy Wire | Type | Temperature | Time (Hr) | Cooling | |
| °C | °F | ||||
| Annealed or Spring Temper | |||||
Properties
| Condition | Approx. tensile strength | Approx. operating temperature | ||
| N/mm² | ksi | °C | °F | |
| Annealed | <1150 | <167 | Up to 1100 | Up to 2012 |
| Spring Temper | 1300 – 1600 | 190 – 230 | ||