Lega a base di nichel con resistenza alle alte temperature particolarmente elevata.
| denominazione di mercato | SEL | EN | EN | UNS |
|---|---|---|---|---|
| Alloy 718 | 2.4668 | NiCr19NbMo/NiCr19Fe19Nb5Mo3 | NC19FCNb | N07718 |
| ASTM | AMS | AMS |
|---|---|---|
| B637 | 5662 | 5663 |
| C | Si | Mn | P | S | Cr | Mo | Ni | Cu | Co | Ti | Al | Nb | B | Fe | Pb | Bi | Se | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| max. 0.08 | max. 0.35 | max. 0.35 | max. 0.015 | max. 0.015 | 17 to 21 | 2.8 to 3.3 | 50 to 55 | max. 0.3 | max. 1 | 0.65 to 1.15 | 0.2 to 0.8 | 4.75 to 5.5 | max. 0.006 | REM | max. 5ppm | max. 0.3ppm | max. 3ppm |
