Heading 8406

Steam turbines and other vapor turbines, and parts thereof

19 declarable lines

Heading 8406 covers steam turbines and other vapor turbines, plus parts of those turbines. It separates marine propulsion turbines from other turbines, and other turbines by output over or not over 40 MW. Parts are split between parts of steam turbines and parts of other turbines.

Products in this heading

Marine propulsion steam turbines
Stationary condensing steam turbines over 40 MW
Stationary condensing steam turbines not exceeding 40 MW
Steam turbine blades, rotating or stationary
Steam turbine rotors finished for final assembly
Steam turbine rotor or spindle assemblies
Low-output steam turbines not exceeding 7,460 kW

How to choose the right subheading

Decide whether the turbine is for marine propulsion; that controls entry under 8406.10.
For non-marine turbines, check whether output exceeds 40 MW or does not exceed 40 MW.
For non-marine turbines, separate steam turbines from other vapor turbines.
For parts, decide whether they are parts of steam turbines or parts of other turbines.
For parts, identify rotor, blade, rotor or spindle assembly, or other; for rotors also check the finishing stage.

Often confused with

Gas turbines for aircraft or power generation
Gas turbines are classified in heading 8411, not with steam or vapor turbines.
Heading 8411
Hydraulic turbines and water wheels
Water-powered turbines are classified in heading 8410.
Heading 8410
Steam generating boilers
Boilers that produce steam are classified in heading 8402.
Heading 8402
Condensers for steam power units
Condensers and auxiliary boiler plant are classified in heading 8404.
Heading 8404

Frequently asked questions

What is the HTS code for a steam turbine for marine propulsion?

Steam turbines for marine propulsion are classified under 8406.10.10.00, with a general (MFN) rate of 6.7%.

What is the duty on steam turbine blades?

Blades, rotating or stationary, for steam turbines are classified under 8406.90.40.00 at a general (MFN) rate of 5%.

How do I classify a steam turbine rotor?

A rotor finished for final assembly goes under 8406.90.20.00 at a general (MFN) rate of 5%. A rotor not further advanced than cleaned or machined for removal of fins, gates, sprues, and risers, or to permit location in finishing machinery goes under 8406.90.30.00 at a general (MFN) rate of 5%.

Guide written from the official schedule text. Rates quoted are general (MFN) rates; check the line page for trade agreement rates and the classification of your exact product.