Tetrafluoroethylene Pipe
CN β US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 3917290090 | 38.1% | CN | US | Official Doc |
| 3917290050 | 38.1% | CN | US | Official Doc |
| 391739 | 0.0% | CN | US | Official Doc |
| 391790 | 0.0% | CN | US | Official Doc |
| 3904610010 | 40.8% | CN | US | Official Doc |
| 3926909987 | 22.8% | CN | US | Official Doc |
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AI Analysis
π Fluoropolymers & PTFE Pipes: The Chemical Resistance Champions
π HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Compliance Strategy
π I. Product Definition & Classification: What Exactly is a "Tetrafluoroethylene Pipe"?
Tetrafluoroethylene (TFE) based pipes, commonly known as PTFE (Polytetrafluoroethylene) or FEP (Fluorinated Ethylene Propylene) pipes, are high-performance plastic conduits renowned for their extreme chemical inertness, high-temperature resistance, and non-stick properties. In international trade, they are strictly categorized based on their physical form (rigid vs. flexible/hose) and specific polymer type.
Key Distinction:
- Rigid Pipes: Structurally stiff tubes used for chemical processing, semiconductor fluid delivery, or high-purity water systems.
- Flexible Hoses/Tubing: Often classified under different sub-headings if they are not "rigid."
β οΈ Critical Classification Point:
- If the product is a rigid tube made of other plastics (generic plastic) β 3917.29.00
- If the product is made of Fluoropolymers (PTFE/FEP) β It often falls under 3917.39 (Pipes/Tubes of fluoropolymers) or 3917.90 (Other articles of plastics), depending on the specific HTSUS structure and length.
- If it is granular PTFE resin (raw material) β 3904.61.00
π¦ II. HS Code Classification Details (2026 Latest Tariff Alignment)
Based on the provided data, here are the specific HS Codes and their descriptions. Note that specific sub-codes (like 3917.39) may have "Error" status for tax retrieval in some databases, requiring manual verification with local customs.
| HS Code | Product Description | Applicable Scenario | Tax Status |
|---|---|---|---|
3917.29.00.90 |
Rigid tubes/pipes of other plastics (not specified elsewhere) | Generic rigid plastic pipes (e.g., PVC, PP, generic PE) for general industrial use | β 0.0% (Base + Add-on) |
3917.29.00.50 |
Rigid tubes/pipes of other plastics, < 200mm in length | Short rigid plastic pipes, fittings, or samples | β 0.0% (Base + Add-on) |
3917.39 |
Pipes and tube fittings of Fluorinated Ethylene-Propylene (FEP) or other Fluoropolymers (including Tetrafluoroethylene-based) | High-performance chemical resistance, high-temp applications, semiconductor/chemical industry pipes | β Error (Failed to retrieve tax info) |
3917.90 |
Other articles of Fluoropolymers (not elsewhere specified), including pipes/tubes for industrial/lab use | Specialized lab tubing, custom fluoropolymer components | β Error (Failed to retrieve tax info) |
3904.61.00.10 |
Polymers of vinyl chloride/halogenated olefins: Fluoropolymers: PTFE Granular | Raw Material: PTFE resin, granular, filled/compounded (for manufacturing pipes) | β 0.0% (Base + Add-on) |
3926.90.99.87 |
Other articles of plastics: Rigid tubes/pipes suitable for electrical conduit | Plastic conduits for electrical wiring (NOT for chemical fluid transport) | β οΈ 12.8% (Base 5.3% + Add-on 7.5%) |
π Key Insight:
- True PTFE/Tetrafluoroethylene Pipes for chemical/liquid transport typically fall under 3917.39.
- If the database shows "Error" for 3917.39, it means the tax rate is not auto-calculated in this specific snapshot. You must check the latest USITC/HTSUS manual or consult a customs broker.
- Do not confuse chemical PTFE pipes (3917.39) with electrical conduit (3926.90.99.87), which has a 12.8% tariff.
π° III. 2026 Tariff Rate Breakdown (Detailed Tax Analysis)
β Applicable Country: United States (US)
β Origin: China (CN) (Assumed based on typical trade context; verify origin)
β Effective Date: Current rates as per provided data
π― 1. 3917.29.00.90 / 3917.29.00.50 β Rigid Pipes of Other Plastics
| Item | Detail |
|---|---|
| Base Tariff | 0.0% |
| Additional Tariff | 0.0% |
| Total Tariff | 0.0% |
| Comment | These are duty-free for generic rigid plastic pipes. However, PTFE/Tetrafluoroethylene pipes are NOT "other plastics" in the general sense; they are Fluoropolymers. Using this code for PTFE pipes may be misclassified. |
π― 2. 3904.61.00.10 β PTFE Granular (Raw Material)
| Item | Detail |
|---|---|
| Base Tariff | 0.0% |
| Additional Tariff | 0.0% |
| Total Tariff | 0.0% |
| Comment | Duty-free. This is for the resin, not the finished pipe. |
π― 3. 3926.90.99.87 β Rigid Plastic Conduits for Electrical Use
| Item | Detail |
|---|---|
| Base Tariff | 5.3% |
| Additional Tariff | 7.5% |
| Total Tariff | 12.8% |
| Comment | Only applies if the pipe is intended for ELECTRICAL CONDUIT. If you import PTFE pipes for chemical processing, do not use this code. Misclassification leads to penalties. |
π― 4. 3917.39 β Pipes of Fluoropolymers (PTFE/FEP)
| Item | Detail |
|---|---|
| Tax Status | Error (Failed to retrieve) |
| Action Required | Manual Verification Needed. |
| > π Interpretation: | |
| > - The "Error" indicates that the automated system did not retrieve a specific duty rate for this code in the provided dataset. | |
| > - Typical USHTS Status: Historically, pipes of fluoropolymers (3917.39) may have a Base Rate of 0% or 1.7%, but Section 301 Additional Duties (usually 7.5% or 25%) may apply depending on the exact subheading and current trade policies. | |
> - Recommendation: Do not assume 0%. Contact a customs broker to confirm if Section 301 duties apply to 3917.39. Many fluoropolymer products are subject to 7.5% additional tariff under Section 301. |
π οΈ IV. Customs Clearance Practical Advice (Pro Tips to Avoid Pitfalls)
β 1. Documentation Checklist (Must-Have)
| Document | Mandatory | Notes |
|---|---|---|
| β Product Specification Sheet | βοΈ | Must clearly state: "Tetrafluoroethylene (PTFE) / FEP", Chemical Resistance, Temperature Range. |
| β Composition Statement | βοΈ | Explicitly state "100% Fluoropolymer" to avoid misclassification under "Other Plastics" (3917.29). |
| β Intended Use Declaration | βοΈ | CRITICAL: Specify if for Chemical Processing (vs. Electrical Conduit). This determines if it goes to 3917.39 or 3926.90.99.87. |
| β Material Safety Data Sheet (MSDS) | βοΈ | Required for chemical resistance claims. |
| β Commercial Invoice | βοΈ | Describe as "Rigid PTFE Pipe for Chemical Transport," NOT "Plastic Pipe." |
| β Country of Origin Certificate | βοΈ | Essential for determining Section 301 applicability. |
β 2. Classification Strategy (Avoiding Common Mistakes)
π₯ βChemical Pipes β Electrical Conduits!β
| Scenario | Correct HS Code | Risk of Misclassification |
|---|---|---|
| PTFE Pipe for Acid/Base Transport | 3917.39 |
High. If misclassified as 3917.29 (0%), you may face back taxes + penalties if 301 duties apply. |
| PTFE Conduit for Electrical Wiring | 3926.90.99.87 |
Low, but ensure it is not used for fluids. |
| PTFE Granules for Manufacturing | 3904.61.00.10 |
Low. Clearly label as "Resin" or "Granules." |
| Short PTFE Fittings (<200mm) | Check 3917.90 or 3917.39 |
Short lengths may be classified as "Fittings" or "Other Articles." |
β
3. Special Handling for "Error" Tax Codes (3917.39)
Since the tax for 3917.39 is "Error," follow these steps:
1. Assume Duty Applies: Do not assume 0%. Assume Base Rate + 7.5% Section 301 Duty until proven otherwise.
2. Request a Binding Ruling: If importing large volumes, apply for a Customs Binding Ruling to get a definitive tax rate.
3. Check HTSUS 2026 Manual: Look up 3917.39.00 in the official USITC HTSUS. It often lists:
- General Rate: 1.7% or 0%
- China (Section 301): +7.5% (Verify current status)
- Total Estimated: 7.5% - 29.2% depending on current trade orders.
π V. Global Market Comparison (2026)
| Market | Recommended HS Code | Estimated Duty (China Origin) | Notes |
|---|---|---|---|
| πΊπΈ USA | 3917.39.00 |
High Risk (Check 7.5% Sec 301) | Database shows "Error." Assume 7.5% additional duty. |
| πͺπΊ EU | 3917.39.00 |
~4.5% | Standard EU tariff for fluoropolymer pipes. No Section 301. |
| π¨π³ China (Import) | 3917.39.00 |
0% - 5% | Depends on specific subheading and FTAs. |
| π―π΅ Japan | 3917.39.00 |
0% - 1.5% | Often duty-free or low duty for high-tech plastics. |
π Conclusion:
- USA is the most complex market due to the "Error" in tax retrieval and potential Section 301 tariffs.
- Always verify3917.39duty with a customs broker. Do not rely on the "0%" rate of generic plastics (3917.29).
π VI. Common Errors & Pitfalls (Learn from Others' Mistakes)
β Error 1: Using 3917.29.00.90 (0% duty) for PTFE pipes.
π Consequence: Misclassification. PTFE is a Fluoropolymer, not "other plastics." Risk of 7.5% - 25% back duty + penalties.
β Error 2: Declaring PTFE pipes as "Electrical Conduit" to use 3926.90.99.87 (12.8%).
π Consequence: If used for chemicals, itβs a false declaration. Customs may reject entry or impose fines.
β Error 3: Ignoring the "Error" status for 3917.39.
π Consequence: Assuming 0% duty when it might be 7.5%+. Plan for 10-15% duty budget.
β Correct Approach:
Declare as: "Rigid PTFE Pipe, Tetrafluoroethylene-based, for Chemical Process Industry, 2-inch Diameter, ASTM D4894 Standard."
HS Code:3917.39.00(Verify duty manually).
π― VII. Final Recommendation: Stay Compliant & Cost-Effective
π― Key Takeaway:
πΉ PTFE Pipes are NOT "generic plastic pipes."
πΉ Do NOT use3917.29(generic plastic) for PTFE.
πΉ Do NOT assume 0% duty for3917.39.
πΉ Budget for 7.5% Section 301 Duty unless proven otherwise.
π Pro Tip:
If you are importing large volumes of PTFE pipes, apply for a Customs Binding Ruling to lock in the correct HS Code and duty rate. This protects you from surprise audits and back taxes.
π£ Immediate Action:
π Contact a US Customs Broker to confirm the current Section 301 duty rate for
3917.39.00.
π Prepare detailed specs highlighting "Fluoropolymer" and "Chemical Resistance."
π Ensure smooth clearance by avoiding misclassification traps!
β¨ Precise Classification = Predictable Costs.
πΌ Protect Your Margins with Accurate HS Codes!
Customer Reviews
About HS Code Classification
The Harmonized System (HS) is an internationally standardized nomenclature developed by the World Customs Organization (WCO) to classify traded products. Over 200 countries use the HS system as the basis for customs tariffs, trade statistics, and import/export regulations.
Each HS code follows a hierarchical structure:
- Chapter (2 digits) β Broad category of goods (e.g., Chapter 84: Machinery and Mechanical Appliances)
- Heading (4 digits) β More specific grouping within the chapter
- Subheading (6 digits) β Internationally standardized breakdown, used by all WCO member countries
- National subdivisions (8-10 digits) β Country-specific extensions for further classification, such as US HTSUS 10-digit codes
Correct HS code classification is essential for smooth customs clearance, accurate duty payment, and compliance with trade regulations. Misclassification can lead to customs delays, overpayment of duties, or penalties.
When importing from CN to US, the applicable tariff rates may include:
- Most-Favored-Nation (MFN) rate β The standard duty rate applied to WTO members
- General rate β Applied to countries without trade agreements
- Trade remedy duties β Additional tariffs such as Section 301 (anti-dumping), Section 232 (national security), or countervailing duties
The information provided on this page is for reference purposes only. For official classification, please consult with your local customs authority or a licensed customs broker.