Steam Turbine Rotor Assembly
A precision-engineered rotor assembly designed for high-speed rotation within steam turbines to convert thermal energy into mechanical power. Classified under HTS 8406.90.45.80 as a part of steam turbines, specifically under 'other' categories for non-leak-proof components. It features balanced blades and shaft for efficient energy transfer in power generation applications.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If used in gas turbines
Parts for gas or turbojet turbines fall under heading 8411, differentiated by working fluid (steam vs combustion gases).
If incorporates gearing or speed changers
Components with integral transmission elements are classified under 8483 as gear boxes or speed changers rather than pure turbine parts.
If for semiconductor manufacturing equipment
If specifically designed for wafer processing tools, it may shift to Chapter 84 unclassified machines per statistical notes.
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Import Tips & Compliance
• Verify material certifications (e.g
• high-temperature alloys) and provide engineering drawings to confirm classification as steam turbine parts
• Ensure compliance with ASME standards for pressure vessels; common pitfall is misclassifying as general machinery parts
• Obtain end-user certificates to avoid reclassification during customs audit
Related Products under HTS 8406.90.45.80
Steam Turbine Blade Set
A set of forged or cast blades optimized for steam flow in axial or radial steam turbines, typically made from nickel-based superalloys. Falls under HTS 8406.90.45.80 as 'other' parts of steam turbines, excluding diaphragms and leak-proof parts. Essential for energy extraction stages in industrial and utility turbines.
Steam Turbine Casing Section
Segmented high-pressure casing section forged from alloy steel to contain steam flow and support internal components in steam turbines. Under HTS 8406.90.45.80 as other parts, distinct from complete turbines or specified sub-parts. Critical for maintaining pressure integrity in power plant operations.
Steam Turbine Nozzle Ring
Annular assembly of stationary nozzles directing high-velocity steam onto turbine blades for impulse extraction. Made from heat-resistant castings, under HTS 8406.90.45.80 as other steam turbine parts. Key component in high-pressure and intermediate-pressure turbine stages.
Steam Turbine Exhaust Hood
Large fabricated structure collecting low-pressure exhaust steam from final turbine stages, directing to condenser. Heavy steel plate construction with insulation mounts, under HTS 8406.90.45.80 other parts. Essential for condensing cycle efficiency in power plants.
Steam Turbine Journal Bearing
Hydrodynamic tilting pad journal bearing supporting turbine rotor with forced lubrication system for high-load capacity. Specialized babbitt-lined pads, HTS 8406.90.45.80 as other steam turbine parts. Critical for rotor stability at supercritical speeds.
Steam Turbine Control Linkage
Precision linkage system connecting governor to steam admission valves for throttle control. High-strength alloy rods and pivots, under HTS 8406.90.45.80 other parts. Ensures reliable speed governing in automatic turbine operation.