HS Code for Boiler Parts and Tubes
The HS Code for boiler parts and tubes is 840290. The MFN duty rate for importing to the US is 2.9%.
| HS Code (6-digit) | 840290 |
|---|---|
| US Duty Rate (MFN) | 2.9% |
| EU Duty Rate (MFN) | 2.7% |
| Chapter | 84 |
| Heading | 8402 |
| Last Updated | 2026-05 |
Description
Parts of steam or other vapour generating boilers
HS Code 840290 covers parts for steam or vapour generating boilers with a US MFN duty rate of 2.9%.
Frequently Asked Questions
When importing boiler parts (HTS 840290) into China, are there any specific design or material restrictions related to pressure vessel components?
Yes, China's General Administration of Customs (GAC) and the State Administration for Market Regulation (SAMR) enforce strict conformity assessment procedures for pressure-bearing boiler parts. Imported parts must comply with Chinese national standards (GB standards) for design, manufacturing, and material specifications, and often require a China Compulsory Certification (CCC) mark or a specific boiler pressure equipment inspection certificate before customs clearance.
Does the material composition of boiler tubes affect their classification under HTS 840290?
Yes, material is critical for classification. For example, seamless steel boiler tubes typically fall under HTS 8402.90.00, while parts made of cast iron are separately classified under a different subheading, such as 8402.90.30, due to differing duty rates and legal notes.
Distinguishing Boiler Parts from Other Steam Components
Parts specifically designed for steam or vapor generating boilers of heading 8402 are correctly classified in 8402.90. However, parts for other steam equipment are classified elsewhere. Key alternative codes include 8412.90 for parts for other engines and motors (e.g., steam turbines) and 8481.90 for parts for pressure-reducing valves, taps, and similar appliances. Additionally, tubes or pipes that are not identifiable as specific boiler parts may fall under Chapter 73 as articles of iron or steel. Always verify the machine the part is designed for to ensure proper classification.
Related HS Codes
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