Hastelloy C-276 (UNS N10276) Corrosion Mechanism: Molybdenum vs Chromium in Reducing & Oxidizing Media

Hastelloy C-276 (UNS N10276 / W.Nr. 2.4819) is a nickel-molybdenum-chromium-tungsten alloy with excellent corrosion resistance in a wide range of severe environments.

The high molybdenum content makes the alloy especially resistant to pitting and crevice corrosion in reducing environments while chromium conveys resistance to oxidizing media.