Nickel Alloys

High-Temperature, High-Corrosion Nickel Alloy Components

Nickel alloys for sour service, high-temperature gas paths, corrosive chemical environments, and demanding subsea applications.

Why Nickel Alloys

When nickel alloys are specified

Nickel alloys maintain mechanical strength at elevated temperatures and resist corrosion from acids, saltwater, and process chemicals. They are the preferred material for components in high-temperature service, sour gas environments, and corrosive chemical processing.

Application Environments

  • High-temperature gas paths (>650°C)
  • Sour service / H₂S environments
  • Seawater and marine exposure
  • Corrosive chemical processing
  • High-pressure subsea conditions
  • Oxidizing and reducing acid service

Common Grades

Inconel 718

UNS N07718

Inconel 625

UNS N06625

Hastelloy C-276

UNS N10276

Hastelloy C-22

UNS N06022

Monel 400

UNS N04400

Waspaloy

UNS N07001

Compatible Processes

  • Investment casting
  • Sand casting
  • Hot forging
  • Precision CNC machining

Typical Industries

  • Oil & Gas
  • Aerospace & Defense
  • Chemical Processing
  • Power Generation
  • Subsea

Quality Considerations

  • NACE MR0175 compliance for sour service
  • Heat traceability from mill cert
  • PMI (Positive Material Identification)
  • NDT: RT, UT, PT as required
  • HIP for dense, defect-free castings
  • Mechanical testing per ASTM/API

Related

Related capabilities, industries & products

Working with nickel alloys?

Submit your drawing, alloy grade, and application details. Oakmet will review process fit and material availability and respond with next-step guidance.