Tag: Inconel screw for high temperature

Inconel 600 or 601 Bolts For High Temperatures?

Q: For a high temperature oxidation-rich environment which would be better Inconel 600 or 601 bolts?
A: For this situation it really depends on the temperature range you are dealing with because both an Inconel 600 bolt and an Inconel 601 bolt offer good oxidation resistance. Inconel 600 can service up to 2000F where Inconel 601 can handle up to 2200F. If you temperatures aren’t that severe, I’d suggest A286 bolts for excellent oxidation resistance. An A286 bolt is known for its high strength, creep resistance and oxidation resistance up to 1300F.

An Inconel 600 Bolt vs an Inconel 625 Bolt

Q: Does Inconel 600 provide the same level of corrosion resistance as an Inconel 625 bolt?
A: Not typically. For corrosion resistance, an Inconel 625 bolt is one of the more corrosion resistant versions of the Inconel alloys and it can withstand many strong hot acids. While not as corrosion resistant as a Hastelloy C276 bolt, Inconel 625 bolts have more high temperature capabilities. As for Inconel 600 compared to Inconel 625 screws, 600 is the go to for high temperature nickel alloys and can withstand up to 2000F vs 1800F for Inconel 625.