铁或钢制管件
CN → US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 7307110045 | 39.8% | CN | US | Official Doc |
| 7307110060 | 39.8% | CN | US | Official Doc |
| 8481302010 | 40.0% | CN | US | Official Doc |
| 8481903000 | 22.5% | CN | US | Official Doc |
AI Analysis
🛠️ Iron/Steel Pipe Fittings (Non-Expendable Cast Iron, Wrought Iron, and Steel)
🌐 HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional-Level Strategy
📌 1. Product Definition & Classification: Do You Really Know "Pipe Fittings"?
Iron and steel pipe fittings are critical components in pipeline systems, used to connect, control, branch, or terminate pipes. In international trade, they are strictly categorized by material (cast iron vs. wrought iron/steel) and function (connectors vs. valves).
- Non-Expendable Cast Iron Fittings: Made from gray cast iron or ductile iron, characterized by high compressive strength and corrosion resistance. Common in water supply and sewage systems.
- Iron/Steel Fittings (Wrought): Includes elbows, tees, couplings, and flanges made from steel or wrought iron. Often used in high-pressure or high-temperature industrial applications.
- Valves vs. Connectors: Valves (e.g., gate valves, check valves) are classified under Chapter 84, while simple connectors (elbows, tees) are often under Chapter 73 or Chapter 84 depending on their specific mechanism.
⚠️ Key Distinction Point:
- If it’s a simple connector (elbow, tee, union) made of cast iron → HS 7307
- If it’s a valve or complex iron fitting → HS 8481
- If it’s a simple steel/iron connector not specifically cast iron → HS 8481 (depending on design)
📦 2. HS Code Classification Details (2026 Latest Tariff Authority对照)
| HS Code | Product Description | Application Scenario | Material |
|---|---|---|---|
7307.11.00.45 |
Non-expansible cast iron pipe fittings, matching cast iron material and pipe accessory category | Water pipes, sewage systems, residential plumbing | Cast Iron |
7307.11.00.60 |
Non-expansible cast iron pipe fittings, belonging to other categories of pipe accessories | Industrial cast iron connectors, specialized fittings | Cast Iron |
8481.30.20.10 |
Iron fittings, matching iron material and valve-type configuration | Iron gate valves, check valves, pressure reducing valves | Iron |
8481.90.30.00 |
Iron piping connection assemblies, meeting iron material and pipe apparatus component use | Iron flanges, adapters, iron valve parts | Iron |
🔍 Important Reminder:
- Cast iron fittings are primarily classified under 7307 (if they are simple connectors like elbows/tees).
- Iron fittings with valve functions or complex iron pipe assemblies fall under 8481.
- Steel fittings (if not cast iron) are often classified under 8481.90 as parts of pipe systems.
💰 3. 2026 Latest Tariff Rate Details (Including Additional Taxes & Policy Surcharges)
✅ Applicable Country: United States (US)
✅ Country of Origin: China (CN)
✅ Effective Time: From November 10, 2025 (including subsequent imports)
🎯 1. 7307.11.00.45 —— Non-Expendable Cast Iron Pipe Fittings (Cast Iron)
| Item | Content |
|---|---|
| Base Tariff | 4.8% (ad valorem) |
| Section 301 Additional Tariff | +25% |
| Section 122 Tariff | +10% |
| Total Tariff | 39.8% |
| Tax Calculation | CIF Value × 39.8% |
| De Minimis Exemption Available? | ❌ No (deny_de_minimis) |
| Legal Basis Path | Section 301:9903.01.25 → Section 122:9903.01.24 → USITC:7307.11.00.45 |
📌 Explanation:
- The 25% Section 301 tariff is applied to most Chinese iron/steel products under US trade law.
- The 10% Section 122 tariff is an additional surcharge for certain iron and steel products.
- Total 39.8% is high but lower than some electronics. Must be factored into cost calculations.
🎯 2. 7307.11.00.60 —— Other Non-Expendable Cast Iron Pipe Fittings
| Item | Content |
|---|---|
| Base Tariff | 4.8% |
| Section 301 Additional Tariff | +25% |
| Section 122 Tariff | +10% |
| Total Tariff | 39.8% |
| Tax Calculation | CIF × 39.8% |
| De Minimis Exemption Available? | ❌ No |
| Legal Basis Path | Section 301:9903.01.25 → Section 122:9903.01.24 → USITC:7307.11.00.60 |
📌 Note:
- Same tariff rate as7307.11.00.45.
- Applies to all cast iron fittings not specifically listed in.45.
🎯 3. 8481.30.20.10 —— Iron Fittings (Valve-Type)
| Item | Content |
|---|---|
| Base Tariff | 5.0% |
| Section 301 Additional Tariff | +25% |
| Section 122 Tariff | +10% |
| Total Tariff | 40.0% |
| Tax Calculation | CIF × 40.0% |
| De Minimis Exemption Available? | ❌ No |
| Legal Basis Path | Section 301:9901.25 → Section 122:9903.01.24 → USITC:8481.30.20.10 |
📌 Important:
- This code applies to iron valves (e.g., gate valves, check valves).
- Slightly higher total tax (40%) due to higher base rate (5%).
- Must provide valve specifications (pressure rating, material, function).
🎯 4. 8481.90.30.00 —— Iron Piping Connection Assemblies (Parts)
| Item | Content |
|---|---|
| Base Tariff | 5.0% |
| Section 301 Additional Tariff | +7.5% |
| Section 122 Tariff | +10% |
| Total Tariff | 22.5% |
| Tax Calculation | CIF × 22.5% |
| De Minimis Exemption Available? | ❌ No |
| Legal Basis Path | Section 301:9901.25 → Section 122:9903.01.24 → USITC:8481.90.30.00 |
📌 Strategic Advantage:
- Lowest total tax (22.5%) among all listed codes.
- Applies to iron pipe fittings that are parts of valves or pipe assemblies, not standalone valves.
- Optimization Tip: If possible, classify as parts (8481.90) rather than valves (8481.30) to save 17.5% in taxes.
🛠️ 4. Customs Clearance Practical Advice (Real-World Pitfall Guide)
✅ 1. Required Documentation Checklist (All Are Mandatory)
| Document | Mandatory | Description |
|---|---|---|
| ✅ Product Specification Sheet | ✔️ | Material type (cast iron vs. steel), pressure rating, dimensions |
| ✅ Product Photos (including nameplate) | ✔️ | Clear view of model number, material mark, pressure symbol |
| ✅ Commercial Invoice | ✔️ | Must specify "Iron/Steel Pipe Fitting" and HS Code |
| ✅ Packing List | ✔️ | Show quantity, weight, and packaging details |
| ✅ Certificate of Origin (CO) | ✔️ | If not from China, to claim preferential rates |
| ✅ Test Report (if required) | ✔️ | Pressure test report, material certification (ASTM/EN standards) |
✅ 2. Declaration Tips (Key Mantras)
🔥 “Material First, Function Second, Name Precise, Tax Down!”
| Scenario | Correct Declaration | Wrong Practice |
|---|---|---|
| Simple cast iron elbow/tee | 7307.11.00.45 or .60 |
Misdeclare as "valve" → 40% |
| Iron gate valve | 8481.30.20.10 |
Misdeclare as "pipe part" → 22.5% (but may be rejected) |
| Iron flange or adapter | 8481.90.30.00 |
Misdeclare as "valve" → 40% |
| Steel fitting (not cast iron) | 8481.90.30.00 |
Misdeclare as "cast iron" → 39.8% |
✅ 3. Special Situation Handling
| Situation | Handling Advice |
|---|---|
| OEM Custom Fittings | Provide customer order + design drawings to avoid misclassification |
| Fittings with Valve Function | Must declare as valve (8481.30) to comply with regulations |
| Mixed Container (Valves + Connectors) | Declare separately to optimize tax rate (valves 40%, parts 22.5%) |
| Fittings for Medical/Gas Use | May require additional certifications (e.g., FDA, CGA) |
🌍 5. Global Market Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Tariff | Certification | Remarks |
|---|---|---|---|---|
| 🇺🇸 USA | 7307.11.00.45 / 8481.90.30.00 |
22.5% - 40% (CN) | ASTM/ASTM | High tax for iron/steel |
| 🇨🇳 China | 7307.11.00.45 / 8481.90.30.00 |
5% - 10% | CCC/RoHS | No additional surcharges |
| 🇪🇺 EU | 7307.11.00.45 / 8481.90.30.00 |
0% - 2.5% (if CE) | CE + PED | No surcharges |
| 🇦🇺 Australia | 7307.11.00.45 / 8481.90.30.00 |
5% | RCM | No surcharges |
| 🇯🇵 Japan | 7307.11.00.45 / 8481.90.30.00 |
0% - 3% | JIS | No surcharges |
📌 Conclusion:
- USA is the only market with high additional surcharges for iron/steel fittings.
- EU and Japan are favorable for export due to low/no tariffs.
- Cost Optimization: Consider shifting production to Vietnam/Mexico to avoid US surcharges.
📌 6. Common Errors & Pitfall Guide (Lessons Learned)
❌ Error 1: Declaring valves as pipe connectors
👉 Consequence: Customs may reclassify and charge 40% instead of 22.5% + penalties.
❌ Error 2: Declaring steel fittings as cast iron
👉 Consequence: Misclassification → Delayed clearance + audit risk.
❌ Error 3: Missing pressure rating in declaration
👉 Consequence: Customs cannot verify compliance → Hold for inspection.
❌ Error 4: Using vague terms like "pipe parts"
👉 Consequence: Unclear classification → Higher risk of reclassification.
✅ Correct Practice:
“Cast Iron Elbow, 2-inch, ASTM A48, 150 PSI, For Water Pipe System, Model XYZ”
🎯 7. Conclusion: Professional Declaration, Save Time, Reduce Cost!
🎯 Remember the Mantra:
🔹 “Cast Iron is 7307, Iron Valves are 8481, Parts are 22.5%, Valves are 40%!”
🔹 “HS Code determines tax, misclassification costs thousands!”
📌 Tips:
- If your fittings are originally from Vietnam, Mexico, or Thailand, you may qualify for IEEPA exemptions in the US, reducing tariffs to 0%-5%.
- Consider applying for an Advance Ruling (Pre-classification) to avoid customs disputes.
📣 Take Action Now:
📞 Contact a professional customs broker + Provide product specs + Apply for HS Code pre-classification
🚀 Ensure smooth clearance, efficient export, and maximized profit!
✨ Professional Clearance Starts with Accurate Classification!
💼 Every dollar of cost deserves precise calculation!
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.