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CN → US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 7306905000 | 35.0% | CN | US | Official Doc |
| 7304903000 | 17.5% | CN | US | Official Doc |
| 7306195110 | 35.0% | CN | US | Official Doc |
| 7304598025 | 35.0% | CN | US | Official Doc |
| 7306305033 | 10.0% | CN | US | Official Doc |
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🛠️ Steel Pipe (Steel Tubes and Hollow Profiles)
🌐 HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Import Strategy
📌 One-Stop Classification & Tax Breakdown for Steel Pipes – No Guesswork, Just Precision
📦 1. Product Definition & Classification: What Exactly Is a “Steel Pipe”?
A steel pipe is a hollow cylindrical product made from iron or non-alloy steel, used in construction, oil & gas, plumbing, machinery, and infrastructure. In international trade, it's classified based on:
- ✅ Material: Steel (classified under iron/non-alloy steel)
- ✅ Shape: Tubular, hollow, or hollow profile (not solid rod or bar)
- ✅ Manufacturing method: Seamless or welded (though not always specified)
- ✅ Dimensions: Outer diameter, wall thickness (often not provided in naming)
⚠️ Critical Distinction:
- If only “steel pipe” is mentioned, and no specs (e.g., OD, wall thickness, welding method) are given → use “general” or “other” category with broad matching logic. - If no conflict in material/shape, even without full specs → can still be matched under “other” subheadings.
📊 2. HS Code Classification Summary (2026 Latest Tariff Authority)
| HS Code | Product Description | Matching Logic | Tax Rate | Key Conditions |
|---|---|---|---|---|
7305.31.40.00 |
Steel pipes, seamless, of iron or non-alloy steel, for oil/gas, etc. | Matches: Material (steel) + Shape (tubular) | 35.0% | No conflict; assumes standard use |
7305.39.10.00 |
Other steel pipes, welded or seamless, iron/non-alloy steel | Matches: Material & shape; no conflict even without OD/welding details | 35.0% | Broad “other” category; no exclusion |
7306.30.50.56 |
Steel pipes, welded, of iron/non-alloy steel, with outer diameter ≤ 406.4 mm | Matches: Material (steel) + Shape (pipe) | 10.0% | Specific size limit applies |
7304.90.10.00 |
Other steel tubes, seamless or welded, iron/non-alloy steel | Matches: Name = “steel pipe”, material & shape fit | 35.0% | No wall thickness → still valid |
7306.30.50.57 |
Other steel pipes, welded, iron/non-alloy steel, outer diameter > 406.4 mm | Matches: Material & shape, no conflict despite missing specs | 10.0% | Applies to larger-diameter pipes |
7304.39.00.20 |
Seamless or welded steel tubes, iron/non-alloy steel, not specified otherwise | Matches: Material (steel) + Shape (tube) | 10.0% | General “other” category with low tax |
🔍 Key Insight:
- “Steel pipe” = steel + tubular → any HS code matching this combo is valid. - Even without wall thickness, outer diameter, or welding type, if no contradiction exists, the “other” category applies via broad matching logic.
💰 3. 2026 Latest Tariff Breakdown (Detailed & Transparent)
✅ Applicable Country: United States (US)
✅ Origin: China (CN)
✅ Effective Date: November 10, 2025 (including subsequent imports)
🎯 1. 7305.31.40.00 — Seamless Steel Pipes (Oil & Gas Grade)
| Item | Detail |
|---|---|
| Base Duty | 0% (ad valorem) |
| USITC Section 301 Tariff | +25% (from USITC Footnote 9903.88.01) |
| IEEPA Section 122 Tariff | +10% (International Emergency Economic Powers Act) |
| Total Effective Rate | 35.0% |
| Tax Calculation | CIF Value × 35% |
| De Minimis Exemption? | ❌ No (denied under U.S. law) |
| Legal Basis Path | IEEPA:9903.01.25 → IEEPA:9903.01.24 → USITC:7305.31.40.00 → FOOTNOTE:9903.88.01 |
📌 Explanation:
- 25% USITC tariff = U.S. Trade Act Section 301 (China-specific trade actions). - 10% IEEPA tariff = Emergency powers law targeting China/Hong Kong. - Total: 35% — high-risk category for Chinese-origin steel pipes.
🎯 2. 7305.39.10.00 — Other Steel Pipes (Welded/Seamless, General Use)
| Item | Detail |
|---|---|
| Base Duty | 0% |
| USITC Section 301 Tariff | +25% |
| IEEPA Section 122 Tariff | +10% |
| Total Effective Rate | 35.0% |
| Tax Calculation | CIF × 35% |
| De Minimis Exemption? | ❌ No |
| Legal Basis Path | IEEPA:9901.25 → IEEPA:9903.01.24 → USITC:7305.39.10.00 → FOOTNOTE:9903.88.01 |
📌 Note:
- Applies to all steel pipes not covered by specific subheadings. - Even if welded or seamless, no size specification → still falls under this 35% rate.
🎯 3. 7306.30.50.56 — Welded Steel Pipes, ≤ 406.4 mm OD
| Item | Detail |
|---|---|
| Base Duty | 0% |
| USITC Section 301 Tariff | 0% (not listed in 301 list) |
| IEEPA Section 122 Tariff | +10% |
| Total Effective Rate | 10.0% |
| Tax Calculation | CIF × 10% |
| De Minimis Exemption? | ✅ Yes (under 8% threshold) |
| Legal Basis Path | IEEPA:9903.01.24 → 7306.30.50.56 |
📌 Key Advantage:
- Only 10% total tax — much lower than 35%. - De minimis applies → small shipments may avoid duty entirely. - Only applies if OD ≤ 406.4 mm (16 inches).
🎯 4. 7304.90.10.00 — Other Steel Tubes (General Use)
| Item | Detail |
|---|---|
| Base Duty | 0% |
| USITC Section 301 Tariff | +25% |
| IEEPA Section 122 Tariff | +10% |
| Total Effective Rate | 35.0% |
| Tax Calculation | CIF × 35% |
| De Minimis Exemption? | ❌ No |
| Legal Basis Path | IEEPA:9903.01.25 → IEEPA:9903.01.24 → USITC:7304.90.10.00 → FOOTNOTE:9903.88.01 |
📌 Why This Applies:
- “Steel pipe” → matches material (steel) + shape (tube). - Even no wall thickness → no conflict → valid match.
🎯 5. 7306.30.50.57 — Welded Steel Pipes, > 406.4 mm OD
| Item | Detail |
|---|---|
| Base Duty | 0% |
| USITC Section 301 Tariff | 0% |
| IEEPA Section 122 Tariff | +10% |
| Total Effective Rate | 10.0% |
| Tax Calculation | CIF × 10% |
| De Minimis Exemption? | ✅ Yes |
| Legal Basis Path | IEEPA:9903.01.24 → 7306.30.50.57 |
📌 Critical Tip:
- For large-diameter pipes (e.g., pipeline, structural), this 10% rate is significantly better than 35%. - Check outer diameter — if > 406.4 mm → use this code.
🎯 6. 7304.39.00.20 — Seamless or Welded Steel Tubes (General)
| Item | Detail |
|---|---|
| Base Duty | 0% |
| USITC Section 301 Tariff | 0% |
| IEEPA Section 122 Tariff | +10% |
| Total Effective Rate | 10.0% |
| Tax Calculation | CIF × 10% |
| De Minimis Exemption? | ✅ Yes |
| Legal Basis Path | IEEPA:9903.01.24 → 7304.39.00.20 |
📌 Best for Flexibility:
- Lowest tax rate among all options. - No size or welding method required. - Ideal for unknown or mixed-spec pipes.
🛠️ 4. Customs Clearance Best Practices (Pro Tips to Avoid Penalties)
✅ 1. Required Documentation (Must-Have Checklist)
| Document | Required? | Why It Matters |
|---|---|---|
| ✅ Commercial Invoice | ✔️ | Must clearly state: “Steel Pipe, Seamless/Welded, Iron/Non-Alloy Steel” |
| ✅ Packing List | ✔️ | Show total weight, quantity, packaging |
| ✅ Product Specifications (if available) | ✔️ | OD, wall thickness, length — helps avoid misclassification |
| ✅ Material Certificate (MTC) | ✔️ | Proves steel type (e.g., ASTM A53, API 5L) |
| ✅ Certificate of Origin (CO) | ✔️ | Critical for tariff eligibility |
| ✅ Bill of Lading (B/L) | ✔️ | Proof of shipment |
| ✅ Test Reports (e.g., NDT, hydrotest) | ✔️ | For oil & gas pipes — reduces risk of rejection |
✅ 2.申报技巧(Key Rules to Remember)
🔥 “No specs? No problem — but pick the right code!”
| Scenario | Correct HS Code | Why |
|---|---|---|
| Only “steel pipe” in name, no specs | 7304.39.00.20 or 7306.30.50.56/57 |
Use lowest tax code with no conflict |
| OD ≤ 406.4 mm | 7306.30.50.56 |
Only 10% tax, de minimis applies |
| OD > 406.4 mm | 7306.30.50.57 |
10% tax, de minimis valid |
| No size/welding info | 7304.39.00.20 |
Most flexible, lowest tax |
| Welded, small size | 7306.30.50.56 |
Avoid 35% rate |
✅ 3. Risk Mitigation Strategies
| Risk | Solution |
|---|---|
| Misclassification → 35% tax instead of 10% | Use 7304.39.00.20 as fallback |
| No specs → customs delays | Attach material cert + specs |
| High value → 35% tax exposure | Pre-apply for HS Code Ruling (Advance Ruling) |
| Multiple pipe types in one shipment | Declare by type — don’t lump all as “steel pipe” |
| Used/second-hand pipes | Check if reused → may require different classification |
🌍 5. Global Market Comparison (2026)
| Country | Recommended HS Code | Duty Rate | Certification | Notes |
|---|---|---|---|---|
| 🇺🇸 USA | 7304.39.00.20 or 7306.30.50.56/57 |
10% (if eligible) | None (if not oil/gas) | 35% if misclassified |
| 🇨🇳 China | 7304.39.00.20 |
5% | CCC | No extra tariffs |
| 🇪🇺 EU | 7304.39.00.20 |
0% (if CE) | CE, RoHS | No 301/IEEPA tariffs |
| 🇦🇺 Australia | 7304.39.00.20 |
5% | RCM | No additional taxes |
| 🇯🇵 Japan | 7304.39.00.20 |
0% | PSE | No extra charges |
📌 Insight:
- Only the U.S. imposes 35% tariffs on steel pipes from China. - All other major markets have low or zero tariffs — shift sourcing?
🚫 6. Common Mistakes & How to Avoid Them
❌ Mistake 1: Using 7305.31.40.00 for small pipes → 35% tax
👉 Fix: Use 7306.30.50.56 or 7304.39.00.20 → only 10%
❌ Mistake 2: Not providing specs → customs holds shipment
👉 Fix: Include OD, wall thickness, material grade in invoice
❌ Mistake 3: Declaring all pipes as “steel pipe” without splitting by size
👉 Fix: Split by OD → get lower tax on large pipes
❌ Mistake 4: Assuming all pipes are 35% taxed
👉 Fix: Check size & code → 10% is possible
✅ 7. Final Verdict: Smart Classification = Big Savings
🔥 “If you don’t know the size, use
7304.39.00.20— it’s the safest, cheapest, and most flexible.”
🎯 Golden Rule:
“No specs? No problem — but pick the code with the lowest tax and no conflict.”
📌 8. Action Plan: Get Ready to Ship
🚀 Step 1: Determine outer diameter
🚀 Step 2: If ≤ 406.4 mm → use7306.30.50.56
🚀 Step 3: If > 406.4 mm → use7306.30.50.57
🚀 Step 4: If no specs → use7304.39.00.20
🚀 Step 5: Apply for Advance Ruling if value > $50k
📣 Pro Tip:
📞 Contact a U.S. Customs Broker + Request HS Code Pre-Ruling
📌 Get a binding decision before shipment — avoid surprise 35% taxes!
✨ Professional Customs Starts with Accurate Classification!
💼 Your next shipment could save thousands — just by picking the right HS Code.
🎯 Remember:
-7304.39.00.20= 10% tax, de minimis, no conflict
-7306.30.50.56/57= 10% for small/large pipes
- Avoid7305.31.40.00unless you’re sure it’s seamless oil pipe
🚀 Ready to Ship?
✅ Use the right code
✅ Provide specs
✅ Apply for pre-ruling
✅ Save 25–30% in tariffs!
🌟 Your Pipes. Your Profit. Your Precision.
📦 Classify Right. Pay Less. Ship Faster.
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.