Is hastelloy and Inconel the same?
| STANDARD | WERKSTOFF NR. | UNS | GOST | AFNOR | JIS | BS | EN | OR |
|---|---|---|---|---|---|---|---|---|
| Inconel 600 | 2.4816 | N06600 | МНЖМц 28-2,5-1,5 | NC15FE11M | NCF 600 | NA 13 | NiCr15Fe | ЭИ868 |
| Inconel 601 | 2.4851 | N06601 | XH60BT | NC23FeA | NCF 601 | NA 49 | NiCr23Fe | ЭИ868 |
| Inconel 617 | 2.4663 | N06617 | ||||||
| Inconel 625 | 2.4856 | N06625 | ХН75МБТЮ | NC22DNB4M | NCF 625 | NA 21 | NiCr22Mo9Nb | ЭИ602 |
| Inconel 690 | 2.4642 | N06690 | ||||||
| Inconel 718 | 2.4668 | N07718 | ||||||
| Inconel 725 | - | N07725 | ||||||
| Inconel X-750 | 2.4669 | N07750 |
Hastelloy is a specialty wire mesh alloy with unique corrosion and heat resistance. Hastelloy is based on nickel and contains trace amounts of molybdenum, tungsten and chromium.
That said, the addition of molybdenum and chromium, in particular, allows Hastelloy to perform under harsh conditions.
Inconel is an austenitic nickel-chromium superalloy registered by Specialty Metals. Its chemical composition consists of nickel (76%), chromium (15.8%) and iron (7.2%).
Hastelloy vs. Inconel: Which One Should I Use?
Hastelloy and Inconel have proven to be specialty alloys designed for high temperature applications. But when it comes to differentiating the two, you have to look at corrosion resistance.
Both alloys have comparable corrosion resistance; however, Inconel has a slight advantage in oxidizing applications. On the other hand, Hastelloy offers better performance when it comes to reducing corrosion due to its higher molybdenum content.
