空调风管配件
CN → US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 7415338050 | 88.0% | CN | US | Official Doc |
| 7307290090 | 90.0% | CN | US | Official Doc |
| 7307199080 | 41.2% | CN | US | Official Doc |
| 8415908085 | 68.9% | CN | US | Official Doc |
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AI Analysis
❄️ Air Conditioner Duct Fittings (AC Duct Accessories)
🌐 HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Compliance Strategy
📌 I. Product Definition & Classification: Do You Truly Understand "AC Duct Fittings"?
Air Conditioner Duct Fittings are critical components in HVAC (Heating, Ventilation, and Air Conditioning) systems. They serve as connectors, adapters, or fasteners between ducts, pipes, and units. In international trade, these fittings are not universally classified under a single code; their classification depends heavily on material composition and functional intent.
⚠️ Key Distinction Point:
- If the fitting is primarily a threaded hardware item (e.g., nuts, bolts, threaded inserts) regardless of material → Likely Chapter 73/74 (Base Metals).
- If the fitting is a specific pipe/tube accessory (e.g., flanges, couplings) → Likely Chapter 73 (Steel/Iron) or 74 (Copper).
- If the fitting is specifically identified as a part of an air conditioner machine → Likely Chapter 84 (Machinery).
📦 II. HS Code Classification Details (Based on Provided Data)
| HS Code | Product Description | Material Inference | Functional Classification |
|---|---|---|---|
7415.33.80.50 |
Other threaded articles; AC duct interface fittings | Copper or Aluminum | Classified as Other Threaded Articles based on form and usage. |
7307.29.00.90 |
Tube or pipe fittings; AC duct interface fittings | Stainless Steel or Copper | Classified as Other Steel or Copper Tube Fittings. |
7307.19.90.80 |
Tube or pipe fittings; AC duct interface fittings | Iron or Steel | Classified as Other Metal Tube Fittings (Iron/Steel). |
8415.90.80.85 |
Parts of air conditioning machines; AC duct interface fittings | N/A (Functional Focus) | Classified as Other Parts of Air Conditioners based on application. |
🔍 Important Note:
- The classification shifts significantly based on whether customs views the item as a general metal fitting (Chapters 73/74) or a specific machine part (Chapter 84).
- Material declarations (Copper vs. Steel vs. Stainless Steel) directly impact the HS Code selection and subsequent tariff rates.
💰 III. 2026 Latest Tariff Rate Breakdown (Including Surcharges & Policy Add-ons)
✅ Applicable Country: United States (US)
✅ Origin: China (CN)
✅ Effective Date: 2025/2026 (Current Trade Environment)
🎯 1. 7415.33.80.50 —— Other Threaded Articles (Copper/Aluminum Based)
| Item | Content |
|---|---|
| Base Tariff | 3.0% (ad valorem) |
| Section 301 Surcharge | +25.0% |
| Section 122 (Steel/Aluminum/Copper) Surcharge | +50.0% |
| Total Effective Rate | 88.0% |
| Tax Calculation | CIF Value × 88.0% |
| De Minimis Eligibility | ❌ Not Eligible (High tariff volume exceeds thresholds) |
| Legal Basis Path | Base Tariff: 3.0% → Sec 301: 25.0% → Sec 122: 50.0% |
📌 Explanation:
- This is a high-cost classification. The combination of base duties, Section 301 (China-specific), and Section 122 (material-specific for aluminum/copper products) creates a massive 88% tax burden.
- Risk: High probability of customs scrutiny regarding material origin to ensure it’s not misclassified to avoid the 50% surcharge.
🎯 2. 7307.29.00.90 —— Other Tube Fittings (Stainless Steel/Copper)
| Item | Content |
|---|---|
| Base Tariff | 5.0% (ad valorem) |
| Section 301 Surcharge | +25.0% |
| Section 122 (Steel/Aluminum/Copper) Surcharge | +50.0% |
| Total Effective Rate | 90.0% |
| Tax Calculation | CIF Value × 90.0% |
| De Minimis Eligibility | ❌ Not Eligible |
| Legal Basis Path | Base Tariff: 5.0% → Sec 301: 25.0% → Sec 122: 50.0% |
📌 Note:
- This is the highest tariff bracket among the options.
- Even if the material is Stainless Steel, it may still fall under the "Steel/Aluminum/Copper" surcharge umbrella depending on the specific Section 122 implementation details for copper alloys.
- Strategy: Avoid this classification unless absolutely necessary; the 90% rate is prohibitive for most commercial volumes.
🎯 3. 7307.19.90.80 —— Other Tube Fittings (Iron/Steel)
| Item | Content |
|---|---|
| Base Tariff | 6.2% (ad valorem) |
| Section 301 Surcharge | +25.0% |
| Section 122 Surcharge | +10.0% (Note: Data specifies 10% for this code, likely due to different material interpretation) |
| Total Effective Rate | 41.2% |
| Tax Calculation | CIF Value × 41.2% |
| De Minimis Eligibility | ❌ Not Eligible |
| Legal Basis Path | Base Tariff: 6.2% → Sec 301: 25.0% → Sec 122: 10.0% |
📌 Comparison:
- This is the most favorable option among the Chapter 73/74 classifications.
- Key Difference: The Section 122 surcharge is significantly lower (10%) compared to the 50% for copper/aluminum codes.
- Recommendation: If the fitting is indeed Iron or Steel, ensure documentation explicitly states "Iron/Steel" to qualify for this 41.2% rate rather than the 88-90% copper rates.
🎯 4. 8415.90.80.85 —— Other Parts of Air Conditioners
| Item | Content |
|---|---|
| Base Tariff | 1.4% (ad valorem) |
| Section 301 Surcharge | +7.5% |
| Section 122 (Steel/Aluminum/Copper) Surcharge | +50.0% |
| Total Effective Rate | 68.9% |
| Tax Calculation | CIF Value × 68.9% |
| De Minimis Eligibility | ❌ Not Eligible |
| Legal Basis Path | Base Tariff: 1.4% → Sec 301: 7.5% → Sec 122: 50.0% |
📌 Explanation:
- While the base tariff is low (1.4%), the Section 122 surcharge of 50% still applies because the fitting is likely made of steel/aluminum/copper.
- The Section 301 surcharge is also reduced (7.5% vs 25%) for certain machinery parts, but the heavy material surcharge keeps the total high.
- Risk: Customs may reject this classification if the item is viewed as a general "pipe fitting" rather than an integral "AC part."
🛠️ IV. Customs Clearance Practical Advice (Pitfall Avoidance Guide)
✅ 1. Documentation Checklist (Non-Negotiable)
| Document | Required | Description |
|---|---|---|
| ✅ Product Specification Sheet | ✔️ | Must specify Material (Copper, Steel, Aluminum, Stainless Steel), Dimensions, and Thread Type. |
| ✅ Technical Drawing | ✔️ | Highlight connection points and intended use (e.g., "Connects to AC Compressor" vs. "General Plumbing"). |
| ✅ Commercial Invoice | ✔️ | Clearly describe the item. Avoid vague terms like "Hardware." Use "AC Duct Fitting" or "Pipe Coupling." |
| ✅ Material Certificate | ✔️ | Critical for proving if the item is Iron/Steel (41.2%) vs. Copper (88-90%). |
| ✅ Packaging List | ✔️ | Show if fittings are sold as standalone accessories or with AC units. |
✅ 2. Declaration Strategy (Key Rules)
🔥 “Material is King, Function is Queen. Declare Accurately!”
| Scenario | Correct HS Code | Error Consequence |
|---|---|---|
| Steel/Iron Fittings | 7307.19.90.80 |
Misdeclaring as Copper → 47.8% higher tax (41.2% vs 89.0%) |
| Copper/Aluminum Fittings | 7415.33.80.50 or 7307.29.00.90 |
Misdeclaring as Steel → Severe Penalty for Misclassification |
| Specific AC Parts | 8415.90.80.85 |
Only if integral to the AC unit. If sold separately as generic hardware, likely rejected. |
| Generic Pipe Fittings | Chapter 73/74 | Do NOT declare as AC part to avoid scrutiny if not exclusively used for AC. |
✅ 3. Special Case Handling
| Situation | Handling Advice |
|---|---|
| Mixed Material Fittings | Declare the primary material by weight. Provide material breakdown in specs. |
| OEM vs. Generic | OEM parts for a specific AC brand have a stronger case for 8415.90.80.85. Generic fittings should use Chapter 73/74. |
| Section 122 Exemptions | Check if the specific alloy or form factor qualifies for any temporary exclusions (rare, but monitor updates). |
| De Minimis Risk | With rates >40%, the $800 de minimis threshold is useless. Plan for full duty payment. |
🌍 V. Global Market Comparison (2026 Context)
| Country/Region | Recommended HS Code | Estimated Tariff (China Origin) | Certification Requirements | Notes |
|---|---|---|---|---|
| 🇺🇸 USA | 7307.19.90.80 (if Steel) |
41.2% | N/A | High tariffs due to Sec 301 + Sec 122. |
| 🇨🇳 China | 7307.19.90.80 |
~6-10% | CCC (if electrical) | Standard import duty. |
| 🇪🇺 EU | 7307.99 (varies) |
~2-5% | CE, RoHS | No Section 301/122 equivalent. |
| 🇦🇺 Australia | 7307.99 |
~5% | RCM | Moderate tariffs. |
📌 Conclusion:
- The US market is the most expensive due to the triple-layer tax structure (Base + 301 + 122).
- Steel/Iron classifications (7307...) are significantly cheaper than Copper/Aluminum (7415...,7307.29...) due to the lower Section 122 surcharge (10% vs 50%).
📌 VI. Common Mistakes & Pitfall Guide
❌ Mistake 1: Declaring Copper Fittings as "Steel" to save 50%.
👉 Consequence: Customs lab test confirms copper → Heavy fines, seizure, and blacklisting.
❌ Mistake 2: Using generic "Pipe Fitting" description without material info.
👉 Consequence: Customs assigns highest default rate or requests excessive documentation → Delay.
❌ Mistake 3: Assuming all AC parts fall under Chapter 84.
👉 Consequence: If the item is a standard threaded connector, Chapter 84 may be rejected. Stick to Chapter 73/74 for generic fittings.
✅ Correct Approach:
"AC Duct Adapter, Material: 304 Stainless Steel, Size: 2-inch, Application: HVAC System, Model XYZ"
🎯 VII. Conclusion: Professional Declaration, Cost Efficiency!
🎯 Remember the Rule of Thumb:
🔹 "Steel is Cheapest (41.2%), Copper is Most Expensive (88-90%)."
🔹 "Function matters for Chapter 84, but Material dictates the Surcharge in Chapters 73/74."
📌 Pro Tip:
If your fittings are made of Iron or Steel, ensure your documentation explicitly emphasizes "Iron/Steel Construction" to secure the 41.2% rate. If they are Copper, prepare for the 88-90% burden or explore alternative supply chains.
📣 Immediate Action:
📞 Consult a Customs Broker + Provide Material Certificates + Verify Section 122 Applicability
🚀 Optimize Your HS Code, Reduce Your Tax Burden!
✨ Professional Customs Clearance Starts with Precise Classification!
💼 Every Percent of Tax Savings Counts!
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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.