HS Code for Large steam turbines

Large steam turbines are classified under HS code 8406.81. This classification is situated within Chapter 84, which encompasses nuclear reactors, boilers, machinery, and mechanical appliances. Heading 8406 specifically covers steam turbines and other vapor turbines. The sub-classification 8406.81 is determined by two primary technical parameters: the intended application and the power output. This code is reserved for turbines that are not used for marine propulsion. The power threshold is the critical differentiator; the turbine must have an output exceeding 40 megawatts (MW). These machines are complex mechanical devices that convert the thermal energy of pressurized steam into rotary motion to drive electrical generators or other heavy machinery. The classification logic follows the principle that machinery should be categorized by its functional output and technical capacity, ensuring that massive utility-scale turbines are distinguished from smaller industrial units.

Products Included

• Utility-scale steam turbines for power plants
• Industrial steam turbines exceeding 40MW output
• Vapor turbines for geothermal power generation (> 40MW)
• High-capacity steam-driven prime movers

Common Misclassification

Large steam turbines are often confused with HS code 8406.82, which covers turbines with an output of 40MW or less. Another common error is 8406.10, which is specifically for turbines used in marine propulsion. Additionally, gas turbines (which operate on combustion gases rather than steam) must be classified under heading 84.11, specifically 8411.82 for large units.

FAQ

What is the HS code for large steam turbines?

The HS code for steam turbines (non-marine) with an output exceeding 40MW is 8406.81.

Does this code include the generator attached to the turbine?

No, the electric generator is classified separately under heading 85.01. HS code 8406.81 refers specifically to the turbine unit itself.