石墨密封圈
CN → US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 3926909989 | 22.8% | CN | US | Official Doc |
| 6815994110 | 35.0% | CN | US | Official Doc |
| 8484100000 | 37.5% | CN | US | Official Doc |
| 8484900000 | 37.5% | CN | US | Official Doc |
| 6815190000 | 35.0% | CN | US | Official Doc |
AI Analysis
🖲️ Graphite Gaskets & Seals (石墨密封垫片/圈)
🌐 HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Clearance Strategy
📌 I. Product Definition & Classification: What Exactly Are You Importing?
Graphite gaskets and seals are critical components used in high-temperature, high-pressure, and corrosive environments across industries such as chemical processing, power generation, and automotive. In international trade, their classification depends heavily on material composition, structure, and specific function.
⚠️ Key Distinction Points: - If made of plastic/polymer-based composites without specific metal integration → Classified under Chapter 39 (Plastics). - If made of pure graphite/mineral carbon without complex metal layers → Classified under Chapter 68 (Mineral Products). - If composed of metal sheets combined with other materials (e.g., graphite-coated metal) → Classified under Chapter 84 (Machinery Parts/Gaskets).
📦 II. HS Code Classification Details (2026 Latest Tariff Authority Comparison)
Based on the provided data, here are the five possible HS Code classifications for "Graphite Gaskets," each with distinct tax implications.
| HS Code | Product Description | Application Scenario | Material/Structure特征 |
|---|---|---|---|
3926.90.99.89 |
Other articles of plastics and articles of other materials | General purpose gaskets not specifically named elsewhere | Plastic-based or composite materials |
6815.99.41.10 |
Other articles of graphite or other carbon | Mineral/carbon-based gaskets | High carbon content, mineral origin |
6815.19.00.00 |
Other articles of graphite, not for electrical use | Non-electrical graphite products | Pure graphite, non-conductive application |
8484.10.00.00 |
Gaskets and similar joints of metal sheeting combined with sheeting of other materials | Metal-graphite composite gaskets | Metal base + graphite layer |
8484.90.00.00 |
Other gaskets, washers, and similar joints | Composite gaskets (metal/non-metal) | Complex structure, metal + non-metal |
🔍 Critical Reminder: - Plastic vs. Mineral: If the gasket is primarily plastic with graphite additives, it falls under 3926.90.99.89. If it is primarily mineral graphite, it falls under 6815. - Metal Integration: If the gasket has a metal core or cladding with graphite sealing layers, it must be classified under 8484.10.00.00 or 8484.90.00.00. Misclassification here can lead to severe penalties.
💰 III. 2026 Latest Tariff Rate Breakdown (Including Additional Duties & Policy Surcharges)
✅ Applicable Country: United States (US)
✅ Origin: China (CN)
✅ Effective Date: November 10, 2025 onwards (including subsequent imports)
🎯 1. 3926.90.99.89 — Plastic/Other Material Articles (Non-Specific Gaskets)
| Item | Content |
|---|---|
| Base Duty | 5.3% (ad valorem) |
| Section 301 Additional Duty | +7.5% |
| Section 122 Duty | +10% |
| Total Duty Rate | 22.8% |
| Tax Calculation | CIF Value × 22.8% |
| De Minimis Exemption | ❌ Not Eligible (due to Section 122) |
| Legal Basis Path | Section 301 → Section 122 → USITC:3926.90.99.89 |
📌 Explanation: - This is the lowest tax bracket among the options. - Suitable for gaskets made of plastic composites or non-metallic materials containing graphite. - Warning: Ensure the product is not deemed "mineral graphite" to avoid reclassification.
🎯 2. 6815.99.41.10 — Other Graphite/Carbon Articles (Mineral Category)
| Item | Content |
|---|---|
| Base Duty | 0.0% |
| Section 301 Additional Duty | +25.0% |
| Section 122 Duty | +10% |
| Total Duty Rate | 35.0% |
| Tax Calculation | CIF Value × 35.0% |
| De Minimis Exemption | ❌ Not Eligible |
| Legal Basis Path | Section 301 → Section 122 → USITC:6815.99.41.10 |
📌 Explanation: - Higher duty than plastic category due to Section 301 (25%). - Applicable to pure graphite or carbon-based gaskets without metal backing. - Risk: If customs determines the product has metal components, this code may be rejected.
🎯 3. 6815.19.00.00 — Other Graphite Articles (Non-Electrical)
| Item | Content |
|---|---|
| Base Duty | 0.0% |
| Section 301 Additional Duty | +25.0% |
| Section 122 Duty | +10% |
| Total Duty Rate | 35.0% |
| Tax Calculation | CIF Value × 35.0% |
| De Minimis Exemption | ❌ Not Eligible |
| Legal Basis Path | Section 301 → Section 122 → USITC:6815.19.00.00 |
📌 Explanation: - Same total rate as
6815.99.41.10. - Specifically for non-electrical graphite products. - Key Differentiator: Must prove the product is not used for electrical insulation or conduction if claiming this code.
🎯 4. 8484.10.00.00 — Metal Sheet Gaskets with Other Materials
| Item | Content |
|---|---|
| Base Duty | 2.5% |
| Section 301 Additional Duty | +25.0% |
| Section 122 Duty | +10% |
| Total Duty Rate | 37.5% |
| Tax Calculation | CIF Value × 37.5% |
| De Minimis Exemption | ❌ Not Eligible |
| Legal Basis Path | Section 301 → Section 122 → USITC:8484.10.00.00 |
📌 Explanation: - Applies to composite gaskets where metal sheeting is combined with other materials (e.g., graphite). - Common in industrial flange gaskets. - Critical: If the gasket is purely graphite with no metal, do not use this code.
🎯 5. 8484.90.00.00 — Other Gaskets & Washers (Composite)
| Item | Content |
|---|---|
| Base Duty | 2.5% |
| Section 301 Additional Duty | +25.0% |
| Section 122 Duty | +10% |
| Total Duty Rate | 37.5% |
| Tax Calculation | CIF Value × 37.5% |
| De Minimis Exemption | ❌ Not Eligible |
| Legal Basis Path | Section 301 → Section 122 → USITC:8484.90.00.00 |
📌 Explanation: - A "catch-all" for composite gaskets not fitting
8484.10. - Also applies to metal-graphite combinations that are more complex. - Risk: High scrutiny on material composition; must prove metal is a key component.
🛠️ IV. Customs Clearance Practical Advice (Pitfall Avoidance Guide)
✅ 1. Documentation Checklist (Mandatory)
| Document | Required | Notes |
|---|---|---|
| ✅ Product Specification Sheet | ✔️ | Must detail material composition (e.g., "95% Graphite, 5% Binder") |
| ✅ Material Safety Data Sheet (MSDS) | ✔️ | Proves chemical/mineral nature vs. plastic |
| ✅ Product Photos (Clear & Detailed) | ✔️ | Show cross-section to reveal if metal layers are present |
| ✅ Certificate of Origin (CO) | ✔️ | Required for Section 122 assessment |
| ✅ Commercial Invoice | ✔️ | Describe accurately: "Graphite Gasket, Composite/Metal-Free/With-Metal" |
| ✅ Packing List | ✔️ | Ensure no mixed lots of different HS codes |
✅ 2. Declaration Tips (Key Mnemonics)
🔥 "Material Defines Code, Metal Triggers Chapter 84, Plastic Lowers Tax!"
| Scenario | Correct Declaration | Incorrect Practice |
|---|---|---|
| Pure Graphite Gasket (No Metal) | 6815.99.41.10 or 6815.19.00.00 |
Declare as 3926 → Penalty for Misclassification |
| Plastic-Grafit Composite Gasket | 3926.90.99.89 |
Declare as 6815 → Higher Tax Unnecessary |
| Metal-Core Graphite Gasket | 8484.10.00.00 |
Declare as 6815 → High Risk of Seizure |
| Mixed Lot (Plastic + Metal Gaskets) | Split Declaration | Combined Declaration → Confusion & Delays |
✅ 3. Special Case Handling
| Situation | Handling Advice |
|---|---|
| OEM Custom Gaskets | Provide customer specs + material test reports to prove composition |
| High-Temp Applications | Emphasize non-metallic if using 6815 or 3926; metal presence increases tax |
| Electrical vs. Non-Electrical | If using 6815.19.00.00, provide proof of non-electrical use |
| Composite Gaskets | If metal is <5%, argue for non-metal classification (requires legal opinion) |
🌍 V. Global Market Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Tariff Rate | Certification | Notes |
|---|---|---|---|---|
| 🇺🇸 USA | 3926.90.99.89 |
22.8% | None Specific | Lowest tax for plastic-based |
| 🇺🇸 USA | 8484.10.00.00 |
37.5% | None Specific | Highest tax for composite |
| 🇨🇳 China | 6815.19.00.00 |
0% | N/A | No additional duties |
| 🇪🇺 EU | 6815.19.00.00 |
0% | REACH/RoHS | Competitive for graphite |
| 🇯🇵 Japan | 6815.19.00.00 |
0% | JIS | No additional duties |
📌 Conclusion: - USA imposes high duties on all origins, but plastic-based gaskets (
3926) are significantly cheaper than graphite or composite ones. - EU and Japan are more favorable for pure graphite products. - Strategy: If possible, reformulate or source plastic-composite gaskets for US import to save 15-15% in duties.
📌 VI. Common Errors & Pitfalls (Lessons Learned)
❌ Error 1: Declaring a metal-core graphite gasket as 6815.19.00.00 (Pure Graphite)
👉 Consequence: Customs reclassifies to 8484.10.00.00 → Back taxes + Interest!
❌ Error 2: Using 3926.90.99.89 for a pure mineral graphite gasket
👉 Consequence: Misclassification → Penalties + Delayed Release
❌ Error 3: Not providing material composition details in the invoice
👉 Consequence: Customs assumes worst-case scenario (highest tax) → 37.5% instead of 22.8%
✅ Correct Action:
"Graphite Gasket, 100% Synthetic Graphite, Non-Metallic, High-Temp Resistant, HS Code: 6815.19.00.00"
🎯 VII. Conclusion: Professional Declaration, Cost Savings, Efficiency!
🎯 Remember These Rules:
🔹 "Plastic = 22.8%, Graphite = 35%, Metal-Composite = 37.5%"
🔹 "HS Code is Life; One Mistake, Cost Spikes"
🔹 "Declare Material Truthfully; Avoid Reinspection"
📌 Pro Tip: If your gaskets are originating from Vietnam, Mexico, or Thailand, you may qualify for IEEPA Exemptions or lower duties under USMCA/FTA. 👉 Recommendation: Apply for an Advance Ruling before shipping to confirm the HS Code and duty rate.
📣 Call to Action:
📞 Contact a Professional Customs Broker + Provide Material Test Reports + Request HS Code Pre-Ruling
🚀 Ensure Smooth Customs Clearance, Save Costs, and Boost Profits!
✨ Professional Clearance Starts with Accurate Classification!
💼 Every Dollar Saved is a Dollar Earned!
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) — Broad category of goods (e.g., Chapter 84: Machinery and Mechanical Appliances)
- Heading (4 digits) — More specific grouping within the chapter
- Subheading (6 digits) — Internationally standardized breakdown, used by all WCO member countries
- National subdivisions (8-10 digits) — 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 — The standard duty rate applied to WTO members
- General rate — Applied to countries without trade agreements
- Trade remedy duties — 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.