Steel forgings
Turbojets, turbopropellers and other gas turbines, and parts thereof: > Parts: > Of turbojets or turbopropellers: > Other > Parts of aircraft turbines: > Steel forgings
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]
Products classified under HTS 8411.91.90.81
Titanium Alloy Turbine Disk Forging
A high-strength steel forging shaped as a turbine disk for use in aircraft turbojet engines, designed to withstand extreme rotational speeds and temperatures. Classified under HTS 8411.91.90.81 as a steel forging component specifically for aircraft gas turbine engines. It forms the core rotating part where turbine blades are attached.
Compressor Spool Steel Forging
Steel forging for the compressor spool in high-bypass turbofan engines used on commercial aircraft, providing the structural backbone for multiple compressor stages. Falls under HTS 8411.91.90.81 due to its unfinished forged state and specific design for turbojet/turbopropeller parts in aviation. Essential for compressing incoming air in the engine core.
Fan Hub Forging for Turbofan Engine
Large steel forging serving as the central hub for the wide-chord fan blades in modern high-bypass ratio aircraft turbofan engines like those on Boeing 787. HTS 8411.91.90.81 applies as it's a rough forging dedicated to aircraft turbojet parts, prior to final machining. Critical for transferring torque from the engine shaft to fan blades.
Turbine Shaft Forging
Forged steel shaft blank for the high-pressure turbine section in military fighter jet engines, engineered for extreme thermal and centrifugal loads. Classified in HTS 8411.91.90.81 as a steel forging for aircraft turbopropeller/turbojet parts. Forms the rotating power transmission element connecting turbine stages.
Inlet Case Forging
Steel forging for the engine inlet case housing the fan frame in regional jet turbofan engines, providing structural support and airflow guidance. HTS 8411.91.90.81 covers this as an unfinished aircraft turbine steel forging. Protects internal components while managing boundary layer air.
Exhaust Nozzle Flange Forging
Heavy-duty steel flange forging connecting variable geometry exhaust nozzles in afterburning military turbojets. Specifically for aircraft turbines under HTS 8411.91.90.81 as steel forging parts. Enables thrust vectoring and noise suppression functions.
Bearing Housing Forging
Precision steel forging for the main bearing housing supporting roller bearings in the turbine center frame of widebody jet engines. HTS 8411.91.90.81 designation for aircraft-specific steel forgings in turbojet parts. Maintains critical shaft alignment under thermal expansion.
Combustor Dome Forging
Steel forging forming the forward dome structure of annular combustors in high-performance aircraft engines, supporting fuel injectors. Classified HTS 8411.91.90.81 as aircraft turbine steel forging component. Withstands combustion temperatures over 2000°F.
Turbine Vane Carrier Forging
Forged steel ring carrier holding stator vanes in the high-pressure turbine of business jet engines. HTS 8411.91.90.81 for aircraft turbojet steel forgings. Provides precise vane spacing and cooling air distribution.
Gearbox Mounting Forging
Steel forging for accessory gearbox mounting bracket on regional turboprop engines, transmitting power to engine accessories. Under HTS 8411.91.90.81 as aircraft-specific steel forging part. Supports fuel pumps, generators, and hydraulic pumps.