Superalloy CNC Machining Services
Close-tolerance production for Inconel, Hastelloy, Waspaloy, and related nickel superalloys used at service temperatures up to 1100°C.
Nickel-Based Superalloys We Machine
Compare eight superalloy families selected for distinct combinations of heat resistance, corrosion behavior, and mechanical strength.
Inconel 718 & 625
Nickel-Chromium-Iron Superalloy
Exceptional strength at 650°C combined with oxidation resistance. Age-hardening precipitation strengthens the alloy after heat treatment. Most widely used superalloy for aerospace turbine engines.
Hastelloy C276 & C22
Nickel-Molybdenum-Chromium Superalloy
Preferred for chemical processing equipment and offshore oil extraction. Exceptional corrosion resistance in aggressive chemical environments — sulfuric acid, hydrochloric acid, chlorine.
Waspaloy
Nickel-Cobalt-Chromium Superalloy
Used in the hottest sections of gas turbine engines where Inconel cannot survive. Highest temperature capability among machinable superalloys — maintains strength at 1100°C.
Monel 400 & K-500
Nickel-Copper Alloy
Excellent seawater corrosion resistance. K-500 age-hardened variant combines higher strength. Used in offshore oil platforms and marine engineering applications.
Stellite 6 & 12
Cobalt-Based Alloy
Cobalt-chromium-tungsten carbide alloy with exceptional hardness and wear resistance. Used for cutting tools, valve seats, and exhaust valve parts.
Superalloy Machining Capabilities
Ceramic Tooling
SiAlON and whisker-reinforced ceramic inserts for Inconel, Waspaloy, and high-hardness superalloys where carbide fails.
Rigid Workholding
Heavy-duty fixtures and hydraulic clamps prevent vibration that accelerates tool wear and causes chatter marks.
Controlled Parameters
Reduced cutting speeds, consistent feed rates, and depth-of-cut strategies prevent work-hardening during machining.
High-Pressure Coolant
Through-spindle coolant delivery at 1000+ psi forces fluid into cutting zone, extending tool life significantly.
Pre-Heat Treatment
Machining before full age-hardening reduces stock material hardness by 15-20 HRC, extending tool life and improving surface finish.
Full Traceability
Material test reports (MTR) and certificates of conformance (CoC) for aerospace and critical applications.
Temperature Performance
Nickel-based superalloys retain useful strength and resist oxidation in thermal conditions beyond conventional metal capability.
Why Temperature Resistance Matters
While internal cooling channels reduce component temperatures, turbine blades and combustion liners still face continuous service temperatures of 900-1100°C. At these temperatures, conventional steel alloys soften rapidly, while superalloys maintain strength and resist creep deformation. Gas turbine engines operate at temperatures exceeding 1300°C in the combustion section.
Aerospace turbine components require materials that maintain tensile strength, resist oxidation, and prevent creep at elevated temperatures. Waspaloy's cobalt addition delivers strong creep resistance for prolonged high-temperature service, making it the preferred choice for the hottest turbine sections.
Industries & Applications
Superalloy parts perform where conventional metals cannot survive — extreme temperatures, aggressive chemicals, and high-stress environments.
Turbine Engines
Temperature resistance up to 1100°C. Inconel and Waspaloy turbine blades, discs, combustion liners.
Gas Turbines
Turbine parts for power plants. Continuous high-temperature operation parts.
Downhole Equipment
Drilling parts, valve bodies exposed to sour gas, seawater, and extreme pressure.
Corrosion-Resistant Equipment
Reactor vessels, heat exchangers, valve bodies handling aggressive acids and chlorine.
Seawater Systems
Propeller shafts, pump components, fasteners with strong seawater corrosion resistance.
Racing Components
Exhaust valve seats and combustion chamber parts for racing engines.
Why Choose Nelotiv for Superalloy Machining
Superalloys represent the ultimate challenge in computer-controlled machining. These materials were engineered to resist deformation at temperatures where conventional metals soften — and they resist machining tools with equal determination.
Nelotiv specialized capabilities combine ceramic and carbide tooling expertise, rigid workholding systems, and deep understanding of each alloy's unique behavior. We've machined Inconel turbine blades for aerospace, Hastelloy valve bodies for chemical processing, Waspaloy combustion liners for power generation, and Monel pump shafts for offshore platforms.
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