下水道盖
CN → US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 7308907000 | 85.0% | CN | US | Official Doc |
| 7308909590 | 85.0% | CN | US | Official Doc |
| 7325100020 | 35.0% | CN | US | Official Doc |
| 7325100080 | 35.0% | CN | US | Official Doc |
| 7326190080 | 87.9% | CN | US | Official Doc |
| 7326908688 | 87.9% | CN | US | Official Doc |
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AI Analysis
🚽 Manhole Covers & Catch Basins (Sewer Grates)
🌐 HS Code Reference & Clearance Guide | 2026 Latest Tariff Breakdown | Professional Customs Strategy
📌 Part 1: Product Definition & Classification: Do You Really Understand "Manhole Covers"?
Manhole covers, catch basins, and grates are critical infrastructure components used to protect underground utilities (sewers, storm drains, electricity, gas) from debris and pedestrians. In international trade, they are classified based on their material and manufacturing process:
Non-Malleable Cast Iron Components:
- Catch Basins, Grates, and Frames: Specifically designed drainage systems made of non-malleable cast iron.
- Other Cast Articles: Other solid iron/steel castings not specifically listed as grates.
Forged/Stamped Articles:
- Stamped/Pressed Metal: Steel or iron articles that have been forged or stamped but not further worked.
- Structural Steel Grating: Steel bars or plates used in structures like bridges or walkways (often used for heavy-duty industrial drainage).
⚠️ Key Distinction:
- Material Matters: "Non-malleable cast iron" (heavy, brittle) vs. "Steel/Forged" (ductile, stronger).
- Function Matters: Is it a "Catch Basin/Frame" (Heading 7325) or "Structural Grating" (Heading 7308)?
- Workmanship: Is it just "cast" (7325) or "forged/stamped" (7326)?
📦 Part 2: HS Code Classification Details (2026 Latest Tariff Authority)
Based strictly on the provided data, here is the breakdown for Manhole Covers, Catch Basins, and Grates:
| HS Code | Product Description | Scenario / Application | Material/Process |
|---|---|---|---|
| 7325.10.00.20 | Catch basins, grates and frames (Non-malleable cast iron) | Standard municipal drain covers, storm drain grates, heavy-duty sewer frames. | ⛓️ Non-malleable Cast Iron |
| 7325.10.00.80 | Other cast articles of iron or steel (Non-malleable cast iron) | Other cast iron parts not fitting "Catch Basins" (e.g., decorative castings, simple solid blocks). | ⛓️ Non-malleable Cast Iron |
| 7326.19.00.80 | Other forged or stamped articles (Iron/Steel) | Stamped steel grates, pressed metal covers, light-duty industrial grates (not cast). | 🔨 Forged/Stamped |
| 7326.90.86.88 | Other articles of iron or steel (Other) | Miscellaneous steel/iron items not covered elsewhere (e.g., complex stamped parts). | 🔨 Stamped/Misc |
| 7308.90.70.00 | Steel Grating (Structures/Parts) | Heavy-duty steel walkway grating, bridge grates, industrial flooring (often used for access covers). | 🔩 Structural Steel |
| 7308.90.95.90 | Other structures/parts (Iron/Steel) | Other structural parts for bridges/structures (e.g., custom steel frames for covers). | 🔩 Structural Steel |
🔍 Critical Note:
- Most Common Classification: Standard manhole covers and drainage grates made of Cast Iron are almost always classified under 7325.10.00.20.
- High Tariff Risk: If the product is Forged or Stamped (lighter weight steel) or classified as Structural Steel Grating (7308.90.70.00), the tariff jumps significantly due to the "Steel, Aluminum, Copper Products" surcharge.
💰 Part 3: 2026 Latest Tariff Rate Breakdown (Detailed)
✅ Applicable Country: USA (US)
✅ Origin: China (CN)
✅ Effective Date: As per current trade policy (2026 context)
🎯 1. 7325.10.00.20 & 7325.10.00.80 —— Non-Malleable Cast Iron (Catch Basins/Grates)
| Item | Content |
|---|---|
| Base Tariff | 0.0% (Free entry for this specific category under Base) |
| Section 301 / "Plus" Tariff | +25.0% (Standard "Additional Tariff" on Chinese steel/iron) |
| Special Steel/Al/Cu Surcharge | N/A (This specific surcharge does not apply to pure "Non-malleable cast iron" grates in this line, based on the data provided which only lists 25% total). |
| Total Tariff Rate | 25.0% |
| Tax Calculation | CIF Value × 25.0% |
| De Minimis Exemption | ❌ No (Commercial importation requires full duty) |
| Legal Basis Path | Section 301 → 7325.10 → Non-malleable cast iron |
📌 Interpretation:
- 7325.10.00.20 (Catch Basins/Grates) and 7325.10.00.80 (Other Cast) have a flat 25% tariff.
- Why? The base tariff is 0%, but the Section 301 "Additional Tariff" adds 25%.
- Crucial: These cast iron products do not attract the additional 50% surcharge mentioned for "Steel, Aluminum, Copper products" in the other codes (7326/7308). This makes Cast Iron significantly cheaper to import than Stamped Steel.
🎯 2. 7326.19.00.80 —— Forged or Stamped (Not Further Worked)
| Item | Content |
|---|---|
| Base Tariff | 2.9% |
| Section 301 / "Plus" Tariff | +25.0% |
| Special Steel/Al/Cu Surcharge | +50.0% (Explicitly listed for "Steel products") |
| Total Tariff Rate | 77.9% |
| Tax Calculation | CIF Value × 77.9% |
| De Minimis Exemption | ❌ No |
| Legal Basis Path | Section 301 + Special Steel Surcharge |
📌 Interpretation:
- If your "Manhole Cover" is Stamped Steel (not Cast Iron) and falls under "Other forged/stamped," the tariff skyrockets to 77.9%.
- This is due to the 50% special surcharge on steel products in addition to the base 2.9% and 25% standard tariff.
🎯 3. 7308.90.70.00 —— Structural Steel Grating
| Item | Content |
|---|---|
| Base Tariff | 0.0% |
| Section 301 / "Plus" Tariff | +25.0% |
| Special Steel/Al/Cu Surcharge | +50.0% (Explicitly listed for "Steel grating") |
| Total Tariff Rate | 75.0% |
| Tax Calculation | CIF Value × 75.0% |
| De Minimis Exemption | ❌ No |
| Legal Basis Path | Structural Steel → Steel Grating → 50% Surcharge |
📌 Interpretation:
- Steel Grating (even if used as a cover) falls under the 75.0% bracket due to the 50% steel surcharge.
- This applies to grating used in structures (bridges, walkways) or prepared for structural use.
🎯 4. 7326.90.86.88 & 7308.90.95.90 —— Other Miscellaneous
| Item | Content |
|---|---|
| Total Tariff Rate | 77.9% (7326) or 75.0% (7308) |
| Reason | Subject to the 25% + 50% combined surcharge on steel/iron products. |
🛠️ Part 4: Customs Clearance Practical Advice (Real-World Pitfall Guide)
✅ 1. Preparation Checklist (Essential Documents)
| Document | Required? | Reason |
|---|---|---|
| ✅ Product Material Cert. | YES | Critical! Must explicitly state "Non-Malleable Cast Iron" vs. "Forged Steel" to get the 25% rate instead of 75%+. |
| ✅ Technical Drawing | YES | To prove it is a "Catch Basin" or "Frame" (7325) and not a "Structural Grating" (7308). |
| ✅ Product Photos | YES | Must show the casting marks, thickness, and weight (Cast iron is heavy/sturdy; stamped is light/flat). |
| ✅ Invoice | YES | Must match the HS Code description exactly (e.g., "Manhole Cover, Cast Iron" vs. "Steel Grate"). |
| ✅ Packing List | YES | To verify quantity and weight consistency. |
✅ 2. Declaration Strategy (Golden Rules)
🔥 The "Cast vs. Stamped" Rule:
"If it's heavy and cast, you pay 25%. If it's light and stamped, you pay 75%!"
| Scenario | Correct HS Code | Incorrect (Risk) | Result |
|---|---|---|---|
| Heavy Cast Iron Cover | 7325.10.00.20 |
7308.90.70.00 |
Save 50% Tax! |
| Light Stamped Steel Grate | 7326.19.00.80 |
7325.10.00.20 |
Penalty + Back Taxes (Misdeclaration) |
| Structural Walkway Grating | 7308.90.70.00 |
7325.10.00.80 |
Pay 75% (No Choice) |
| Cast Frame + Stamped Grate | Split Declaration | Mixed Declaration | Risk of Audit |
✅ 3. Special Handling Tips
| Situation | Advice |
|---|---|
| Material Confusion | If the product is "Ductile Iron" vs. "Cast Iron," declare as Cast Iron (7325) if possible. Ductile iron sometimes falls under different categories, but "Non-Malleable" is the key phrase for 7325. |
| Coated/Finished Products | Does not change the HS Code. Cast Iron remains 7325. |
| Structural Use | If the grate is explicitly designed for bridges or heavy structures, declare as 7308.90.70.00 (Steel Grating) to be accurate, even though the tax is higher. |
| "Other" Category | If it doesn't fit "Catch Basins" or "Frames" but is Cast Iron, use 7325.10.00.80 (Still 25%!). |
🌍 Part 5: Global Market Comparison (2026 Context)
| Market | Recommended HS Code | Est. Tariff | Key Requirement |
|---|---|---|---|
| 🇺🇸 USA | 7325.10.00.20 |
25.0% | Strict Material Proof (Cast Iron vs. Steel) |
| 🇪🇺 EU | 7325 (Cast Iron) | ~1.7% (Standard) | CE Mark (if structural) |
| 🇨🇳 China | 7325 | 0% - 5% | Export License (if restricted) |
| 🇦🇺 Australia | 7325 | 5% | ACCC Certification |
📌 Conclusion:
The US is the most critical market for this classification. A 50% tariff difference exists between "Cast Iron" (25%) and "Stamped Steel/Structural Grating" (75%). Accurate material declaration is the single most important factor for cost saving.
📌 Part 6: Common Mistakes & Pitfalls (Lessons Learned)
❌ Mistake 1: Calling a "Stamped Steel Grate" a "Catch Basin" to avoid the 50% surcharge.
👉 Consequence: Customs audit, seizure, and back-taxes of 50% + penalties.
❌ Mistake 2: Declaring "Steel Grating" as "Other Cast Articles" to get 25%.
👉 Consequence: Rejection of goods, delay, forced re-classification.
❌ Mistake 3: Not specifying the material on the Invoice.
👉 Consequence: Customs assumes the highest tax rate (Steel/50% surcharge) by default.
✅ Correct Practice:
"Manhole Cover, Non-Malleable Cast Iron, 600mm x 600mm, ASTM A48 Class 30, Casted Process"
Use keywords: "Cast Iron", "Non-Malleable", "Catch Basin". Avoid "Steel", "Stamped", "Forged" if possible.
🎯 Part 7: Final Conclusion
🎯 Remember the Golden Rule:
🔹 "Cast Iron = 25% (Safe & Cheap)"
🔹 "Steel/Stamped/Structural = 75%+ (Expensive & Risky)"🔹 "Material is King, Declaration is Queen!"
📌 Pro Tip:
If you are importing manhole covers, ensure your supplier provides a Material Test Certificate confirming "Non-Malleable Cast Iron". This document is your insurance policy against the 50% steel surcharge.
📣 Take Action Now:
📞 Verify Material with Supplier
📄 Prepare Technical Docs (Specs + Photos)
🚀 Declare Accurately to save 50% on your tariff bill!
✨ Professional Clearance Starts with Precise Classification!
💼 Every 25% Saved is Pure Profit!
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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.