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HSChapter 84
U.S. imports of steam and vapor turbines not exceeding 40 mw (non-marine) (HS 840682) totaled $1.4M in April 2026, traded with 3 countries.
Importers of Steam and Vapor Turbines Not Exceeding 40 MW (Non-Marine) paid $81K in duties in April 2026 — an effective duty rate of 5.9% on $1.4M in dutiable value, based on actual customs collections rather than the published tariff schedule. Steam and Vapor Turbines Not Exceeding 40 MW (Non-Marine) imports of $1.4M in April 2026 ran 25% below the year-to-date monthly average of $1.8M.
Last updated: April 2026 dataSub-40 MW steam turbines serve industrial cogeneration, distributed power, and process-drive applications, and the US schedule subdivides them by output threshold and mobility: stationary units at or below 7,460 kW (8406821010), stationary units above 7,460 kW (8406821020), non-stationary steam turbines below 7,460 kW (8406821050), and non-steam vapor turbines (8406829000). Italy leads US imports in this size class, followed by the Czech Republic and India. The stationary vs. non-stationary distinction is operationally significant — mobile or skid-mounted turbines used in oilfield or emergency power applications fall into a different tariff line than fixed plant installations.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
CBP generally considers a turbine 'stationary' if it is designed for permanent or semi-permanent installation at a fixed site, even if it is mounted on a skid for ease of transport during installation. A turbine designed to be regularly relocated — such as a mobile oilfield power unit — would be considered non-stationary. The OEM's product specification and the buyer's intended use documentation are the primary evidence for this determination.
The 7,460 kW (approximately 10,000 horsepower) breakpoint reflects a longstanding US tariff schedule distinction that separates smaller industrial and process-drive turbines from larger utility-adjacent units. This threshold affects the applicable tariff rate and, in some cases, eligibility for duty suspension or tariff engineering strategies. Importers should verify the turbine's rated output against the nameplate data and OEM documentation to ensure the correct line is declared.
| Country | Imports | Exports | Balance |
|---|---|---|---|
| CZECH REPUBLIC | $1.2M | -- | -$1.2M |
| SINGAPORE | -- | $733K | +$733K |
| INDIA | $125K | -- | -$125K |
| GUATEMALA | -- | $81K | +$81K |
| CHINA | -- | -- | -- |
Monthly import values over time
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HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 8406829000 | VAPOR TURBINES,EX STEAM & MARINE PROPUL, LT 40MW | $1.1M | 3.56% | $40K |
| 8406821020 | STATNRY. STEAM TURBINES,EXC MAR PROP,GT 7,460 KW | $246K | 16.70% | $41K |
| 8406821010 | STAT.STEAM TURBINES,EXC MARINE PROPUL,LT= 7,460 KW | $0 | -- | -- |
VAPOR TURBINES,EX STEAM & MARINE PROPUL, LT 40MW
STATNRY. STEAM TURBINES,EXC MAR PROP,GT 7,460 KW
STAT.STEAM TURBINES,EXC MARINE PROPUL,LT= 7,460 KW
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 8406829000 | VAPOR TURBINES,EX STEAM & MARINE PROPUL, LT 40MW | $733K |
| 8406821000 | STEAM TURBINES,EXC MARINE PROPULSION NOT EXC 40 MW | $81K |
VAPOR TURBINES,EX STEAM & MARINE PROPUL, LT 40MW
29 no
STEAM TURBINES,EXC MARINE PROPULSION NOT EXC 40 MW
1 no
DIGITAL PROCESSING UNITS, N.E.S.O.I.
HS 847150
PARTS & ACCESSORIES FOR ADP MACHINES & UNITS
HS 847330
PORT DIGTL AUTOMATIC DATA PROCESS MACH NOT > 10 KG
HS 847130
AUTOMATIC DATA PROCESSING STORAGE UNITS, N.E.S.O.I
HS 847170
AUTOMATIC DATA PROCESSING UNITS, N.E.S.O.I.
HS 847180
TURBOJET AND TURBOPROLLER PARTS
HS 841191
| State | Imports | Exports | Balance |
|---|---|---|---|
| Nevada | $1.2M | -- | -$1.2M |
| California | -- | $733K | +$733K |
| Pennsylvania | $125K | -- | -$125K |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| OAKLAND, CA | $1.2M | -- | -$1.2M |
| LOS ANGELES INTERNATIONAL AIRPORT, CA | -- | $733K | +$733K |
| LONG BEACH, CA | $125K | -- | -$125K |