Forged Steam Turbine Rotor Shaft
Forged steel shaft serving as the core spindle for steam turbine rotors, with keyed sections for blade attachment. HTS 8406.90.4540 applies to such spindles and assemblies dedicated to steam turbines.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported as unfinished alloy steel bar
Raw forged shafts without turbine-specific machining classify as semi-finished steel products in Chapter 72.
If for general industrial machinery
Lack of steam turbine-specific features leads to classification as other machinery parts under 8483.
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Import Tips & Compliance
• Certify forging process and alloy composition per ASTM specs; use ISPM-15 compliant packaging for wood cradles; declare exact dimensions to qualify for oversized cargo rates
Related Products under HTS 8406.90.45.40
Steam Turbine Rotor Assembly
A complete rotor assembly for industrial steam turbines, consisting of the central shaft with attached blades optimized for high-speed rotation in vapor expansion. Classified under HTS 8406.90.4540 as a rotor or spindle assembly specifically for steam turbines, essential for converting thermal energy into mechanical power in power plants.
High-Pressure Steam Turbine Spindle
Precision-machined spindle for the high-pressure stage of steam turbines, designed to withstand extreme temperatures and rotational stresses. Falls under HTS 8406.90.4540 as a spindle component of steam turbines used in electricity generation.
Low-Pressure Steam Turbine Rotor
Long-blade rotor for the low-pressure section of condensing steam turbines, engineered for maximum exhaust flow in large-scale power stations. Classified in HTS 8406.90.4540 as a rotor of steam turbines.
Combined High/Low Pressure Turbine Rotor Assembly
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Steam Turbine Rotor Balancing Assembly
Pre-assembled rotor with balance weights and test fixtures for high-speed steam turbine applications. HTS 8406.90.4540 covers such rotor assemblies as parts of steam turbines.
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Robust spindle shaft for cogeneration steam turbines in industrial plants, supporting impeller-style blades. Classified in HTS 8406.90.4540 as a steam turbine spindle.