氧气罐
CN → US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 9018907560 | 10.0% | CN | US | Official Doc |
| 7311000060 | 85.0% | CN | US | Official Doc |
| 9018908000 | 10.0% | CN | US | Official Doc |
| 2804400000 | 38.7% | CN | US | Official Doc |
| 7311000030 | 85.0% | CN | US | Official Doc |
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🧪 Oxygen Cylinder (Medical & Industrial Gas Containers)
🌐 HS Code Classification & Tariff Guide | 2026 Latest Customs Rules | Expert Compliance Strategy
📌 One Product, Multiple Classifications — Why the Confusion?
The oxygen cylinder is a multifunctional item that can be classified under different HS Codes depending on its primary use, material, and content. This leads to dramatically different tariffs — from 10% to 85% — based on how it's declared.
⚠️ Critical Insight:
- If declared as medical equipment → 10% total tax
- If declared as metal gas container → 85% total tax
- If declared as compressed gas (oxygen) → 38.7% taxOne wrong classification = 75% higher cost.
📦 2026 HS Code Breakdown: The Real Truth Behind Oxygen Cylinder Classification
| HS Code | Product Description | Key Classification Logic | Tax Rate |
|---|---|---|---|
9018.90.75.60 |
Medical/therapeutic equipment — oxygen tanks used in healthcare | Used for treatment, diagnosis, or therapy → falls under medical instruments | 10.0% |
7311.00.00.60 |
Metal gas containers (iron/steel), pressure vessels | Made of steel, designed to hold compressed gas → fits container category | 85.0% |
9018.90.80.00 |
Other instruments and apparatus for medical, surgical, or veterinary use | General-purpose medical devices — includes oxygen delivery systems | 10.0% |
2804.40.00.00 |
Oxygen (compressed gas), chemical substance | Content is pure oxygen gas → classified by chemical substance, not container | 38.7% |
7311.00.00.30 |
Steel pressure vessels for gases (same as 7311.00.00.60) | Identical to above — steel container for compressed gas | 85.0% |
🔍 Why So Many Codes?
The same physical product (an oxygen tank) can be legally classified under 5 different HS codes based on: - Intended use (medical vs. industrial) - Material (steel vs. aluminum) - Content (gas vs. container) - Function (therapy device vs. storage vessel)
💰 2026 Tariff Breakdown: What’s Really Driving the Tax?
✅ Applicable Country: United States (US)
✅ Origin: China (CN)
✅ Effective Date: November 10, 2025 (and onward)
🎯 1. 9018.90.75.60 — Medical/Therapeutic Equipment
| Item | Detail |
|---|---|
| Base Duty | 0.0% (ad valorem) |
| Section 301 (USITC) Additional Duty | 0.0% |
| Section 122 (IEEPA) Emergency Tariff | 10.0% |
| Total Tax Rate | 10.0% |
| Tax Calculation | CIF × 10% |
| De Minimis Exemption? | ✅ Yes (if value < $800) |
| Legal Basis | IEEPA:9903.01.25 → IEEPA:9903.01.24 → 9018.90.75.60 |
📌 Why This Low Tax?
- The primary purpose is medical treatment (e.g., for COPD, anesthesia, emergency care). - It’s not just a container — it’s part of a medical delivery system. - Must be labeled for medical use and sold with prescription or healthcare documentation.
🎯 2. 7311.00.00.60 — Steel Gas Container (Pressure Vessel)
| Item | Detail |
|---|---|
| Base Duty | 0.0% |
| Section 301 (USITC) Additional Duty | 25.0% |
| Section 122 (IEEPA) Emergency Tariff | 10.0% |
| Steel/Aluminum/Copper Product Additional Duty | 50.0% |
| Total Tax Rate | 85.0% |
| Tax Calculation | CIF × 85% |
| De Minimis Exemption? | ❌ No |
| Legal Basis | IEEPA:9903.01.25 → IEEPA:9903.01.24 → 7311.00.00.60 → FOOTNOTE:9903.88.01 |
📌 Why This Sky-High Tax?
- Material = steel → triggers 50% tariff under Section 122. - Steel products from China are subject to 25% Section 301 + 10% IEEPA + 50% steel-specific tariff. - This is not medical equipment — it’s industrial container. - Even if used medically, if not labeled or sold as medical, it’s treated as industrial steel product.
🎯 3. 9018.90.80.00 — Other Instruments for Medical/Surgical Use
| Item | Detail |
|---|---|
| Base Duty | 0.0% |
| Section 301 (USITC) Additional Duty | 0.0% |
| Section 122 (IEEPA) Emergency Tariff | 10.0% |
| Total Tax Rate | 10.0% |
| Tax Calculation | CIF × 10% |
| De Minimis Exemption? | ✅ Yes |
| Legal Basis | IEEPA:9903.01.25 → IEEPA:9903.01.24 → 9018.90.80.00 |
📌 Same as 9018.90.75.60 — just a broader subcategory.
- Covers non-specific medical devices used in surgery, vet care, or therapy. - Still qualifies for 10% total if medical use is proven.
🎯 4. 2804.40.00.00 — Compressed Oxygen (Chemical Substance)
| Item | Detail |
|---|---|
| Base Duty | 3.7% |
| Section 301 (USITC) Additional Duty | 25.0% |
| Section 122 (IEEPA) Emergency Tariff | 10.0% |
| Total Tax Rate | 38.7% |
| Tax Calculation | CIF × 38.7% |
| De Minimis Exemption? | ❌ No |
| Legal Basis | IEEPA:9903.01.25 → IEEPA:9903.01.24 → 2804.40.00.00 |
📌 Key Insight:
- This code treats the oxygen gas itself as a chemical commodity, not the container. - Only applies if the gas is sold separately (e.g., bulk oxygen tanks, gas cylinders sold by volume). - If the cylinder is included, you cannot use this code — it’s misclassification.
🎯 5. 7311.00.00.30 — Steel Pressure Vessels for Gases
| Item | Detail |
|---|---|
| Base Duty | 0.0% |
| Section 301 (USITC) Additional Duty | 25.0% |
| Section 122 (IEEPA) Emergency Tariff | 10.0% |
| Steel/Aluminum/Copper Product Additional Duty | 50.0% |
| Total Tax Rate | 85.0% |
| Tax Calculation | CIF × 85% |
| De Minimis Exemption? | ❌ No |
| Legal Basis | Same as 7311.00.00.60 |
📌 Same as 7311.00.00.60 — just a different sub-code for same product.
- No difference in tax — both are steel gas containers.
🛠️ 4. Customs Clearance Best Practices (Avoid 85% Tax!)
✅ 1. Essential Documentation (Must-Have)
| Document | Required? | Why It Matters |
|---|---|---|
| ✅ Product Manual / Label | ✔️ | Must state "For Medical Use", "Therapeutic Oxygen Delivery", or "Prescription Use" |
| ✅ Medical Certification (FDA/CE) | ✔️ | Proves intended medical use |
| ✅ Commercial Invoice | ✔️ | Must describe product as "Medical Oxygen Cylinder for Patient Therapy" |
| ✅ Packing List | ✔️ | Shows cylinder + regulator + valves (if included) |
| ✅ Certificate of Origin (CO) | ✔️ | Required for tariff eligibility |
| ✅ Test Reports (e.g., pressure test, material grade) | ✔️ | Proves steel quality, pressure rating |
| ✅ Photos (clear, with model number & label) | ✔️ | Critical for customs inspection |
✅ 2.申报技巧(Pro Tips)
🔥 "Use the Right Name, Get the Right Tax!"
| Scenario | Correct HS Code | Wrong Code | Risk |
|---|---|---|---|
| Sold to hospitals, clinics, pharmacies | 9018.90.75.60 or 9018.90.80.00 |
7311.00.00.60 |
85% tax |
| Sold as industrial gas cylinder (e.g., welding) | 7311.00.00.60 |
9018.90.75.60 |
10% tax → underpaid → penalties |
| Bulk oxygen gas (not in cylinder) | 2804.40.00.00 |
7311.00.00.60 |
38.7% vs 85% → save 46.3% |
| Cylinder + regulator + hose kit | One package, one HS Code | Split into parts | Each part taxed at 85% → Total: 255%+ |
✅ 3. Special Cases & Solutions
| Situation | Recommended Action |
|---|---|
| Oxygen cylinder sold to a medical distributor | Use 9018.90.75.60 or 9018.90.80.00 + medical label |
| Cylinder used in emergency response (fire, ambulance) | Apply for "Critical Medical Equipment" exemption — file with CBP |
| Cylinder sold to a non-medical customer (e.g., hobbyist) | Must declare as 7311.00.00.60 → 85% tax |
| Oxygen gas sold in bulk (not in cylinder) | Use 2804.40.00.00 → 38.7% tax (much lower) |
| Cylinder reused or refilled | Must be re-certified — otherwise treated as new container |
🌍 5. Global Customs Comparison (2026)
| Country | Recommended HS Code | Tariff | Certification | Notes |
|---|---|---|---|---|
| 🇺🇸 USA | 9018.90.75.60 |
10% (if medical) | FDA/CE | 85% if misclassified |
| 🇨🇳 China | 9018.90.75.60 |
5% | CCC | No extra tariffs |
| 🇪🇺 EU | 9018.90.75.60 |
0% (if CE) | CE | No 122/301 tariffs |
| 🇦🇺 Australia | 9018.90.75.60 |
5% | RCM | No additional duties |
| 🇯🇵 Japan | 9018.90.75.60 |
0% | PSE | No extra tariffs |
📌 Takeaway:
- Only the US imposes 85% tariff on steel containers. - China, EU, Japan, Australia treat medical oxygen cylinders as low-tariff medical devices.
📌 6. Common Mistakes & Costly Errors
❌ Mistake 1: Declaring medical oxygen cylinder as 7311.00.00.60
👉 Result: 85% tax instead of 10% → 75% overpayment → refund required
❌ Mistake 2: Splitting cylinder + regulator + hose into separate items
👉 Result: Each item taxed at 85% → Total tax: 255%+ → seizure risk
❌ Mistake 3: Using "Oxygen Tank" in invoice without medical context
👉 Result: Customs assumes industrial use → 85% tax
❌ Mistake 4: Not labeling the cylinder as "Medical Use"
👉 Result: No proof of intent → classified as steel container
✅ Correct Declaration Example:
"Medical Oxygen Cylinder, 200L, Steel, for Patient Therapy, with Regulator, FDA-Cleared, CE Marked, Intended for Hospital Use"
🎯 7. Final Verdict: How to Pay the Least Tax
✅ Best Strategy:
- If used in healthcare → Use9018.90.75.60or9018.90.80.00
- Prove medical use with label, certification, invoice
- Avoid7311.00.00.60unless sold as industrial container🚨 Danger Zone:
- Don’t declare as medical if it’s not — fraud risk - Don’t declare as industrial if it’s medical — pay 85% tax
📣 Act Now: Secure Your Profit Margin!
📞 Contact a Customs Broker + Submit product photos + Request HS Code Pre-Ruling
🚀 Avoid 85% tax, reduce risk, speed up clearance
✨ Professional Compliance Starts with Accurate Classification!
💼 Your product’s tax rate is not a guess — it’s a decision. Make it count.
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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.