Nickel Alloy

  Nickel alloys are defined by nickel being the single most abundant element by weight – the highest content among all alloying elements (normally, but not necessarily, exceeding 50%). The Hastelloy family is a prominent example, renowned for outstanding resistance to both uniform and localized corrosion in aggressive environments.

These alloys offer tensile strengths typically between 700 and 1000 MPa with good ductility and excellent retention of strength at elevated temperatures. Corrosion resistance is primarily governed by chromium (forms a protective oxide film against oxidation) and molybdenum (enhances resistance to pitting, crevice corrosion, and reducing acids). For instance, higher molybdenum content directly improves resistance to chloride‑induced stress corrosion cracking.