Inconel Fabrication

Inconel and other nickel-based superalloys represent the most challenging materials in metal fabrication, demanding specialized knowledge, tooling, and procedures to work successfully. These alloys maintain their strength at temperatures where steel and stainless steel would fail, making them essential for jet engines, gas turbines, and extreme-environment chemical processing. Inconel 625 and 718 are the most commonly fabricated grades. These alloys work-harden aggressively during machining, requiring rigid setups, carbide or ceramic tooling, and slower speeds than steel. Welding requires precise heat input control and appropriate filler metals to prevent hot cracking and maintain corrosion resistance. Finding qualified Inconel fabrication providers requires careful vetting. Look for shops with documented experience on your specific alloy, qualified welding procedures (typically to ASME Section IX or AWS D17.1 for aerospace), and appropriate quality certifications. NADCAP accreditation for welding and heat treating is important for aerospace applications.