Alloy 617 / 2.4663
2.4663 is a nickel-chromium-cobalt-molybdenum alloy with a good weldability, high strength and excellent creep properties. Alloy 617 is also resistant to high-temperature corrosion, oxidation and carburization.
Material Data Sheet
| Material Designation | 2.4663 |
|---|---|
| Alloy | Alloy 617 |
| EN Material Symbol | NiCr23Co12Mo |
| UNS | N 06617 |
| Trademark | Nicrofer® 5520 Co |
| VdTÜV Data Sheet | 485 |
| Norm | DIN EN 17744 |
Main fields of application of alloy 617
Alloy 617 is applied at high temperatures. Alloy 617 is used in air heaters, furnace components, beam pipes or high-temperature heat exchangers as well as in gas turbines and combustion chambers.
Chemical composition of alloy 617
| C | Si | Mn | P | S | Cr | Mo |
|---|---|---|---|---|---|---|
| ≤ % | ≤ % | ≤ % | ≤ % | ≤ % | % | % |
| 0.05-0.1 | 0.7 | 0.7 | 0.012 | 0.008 | 20.0-23.0 | 8.0-10.0 |
| Ni | Al | Co | Cu | Fe | Ti | B |
| % | % | % | ≤ % | ≤ % | % | % |
| rest | 0.6-1.5 | 10.0-13.0 | 0.5 | 2 | 0.02-0.5 | 0.006 |
Characteristics of alloy 617
| Temperature Range | High-Temperature Range |
|---|---|
| Density | 8.4 g/cm³ |
| Melting Range | 1330 – 1380°C |
| ISO-V notch impact toughnessISO V-Notched impact strength | ≤ 100 J/cm² (across) |
| ≤ 150 J/cm² (lengthwise) |
Filler metal (for welding with alloy 617)
FM 617- 2.4627
Wire Electrodes:
AWS A5.14: ERNiCrCoMo-1
DIN EN ISO 18274: S Ni 6617
Covered Rod Electrodes:
2.4628
UNS W86117
AWS A5.11: ENiCrCoMo-1
DIN EN ISO 14172: E Ni 6617