保护环
CN → US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 7326190080 | 87.9% | CN | US | Official Doc |
| 7326908688 | 87.9% | CN | US | Official Doc |
| 4016935010 | 37.5% | CN | US | Official Doc |
| 4016931010 | 37.5% | CN | US | Official Doc |
Product Images
AI Analysis
🛡️ Protection Rings / Gaskets & Seals (Industrial Sealing Components)
🌐 HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Compliance Strategy
📌 I. Product Definition & Classification: What Exactly Is a "Protection Ring"?
In international trade, the term "Protection Ring" (保护圈) is ambiguous. It typically refers to mechanical sealing components, gaskets, washers, or protective shields used in industrial, automotive, or pipeline systems. Based on material (metal vs. rubber) and function (sealing vs. structural protection), it falls into two distinct HS Code categories.
⚠️ Critical Distinction:
- If made of Steel/Iron and used as a structural part, frame, or non-sealing component → Classified under Chapter 73 (Iron/Steel Articles).
- If made of Rubber and used primarily for Sealing/Gasketing → Classified under Chapter 40 (Rubber Articles).
📦 II. Detailed HS Code Classification (Based on Provided Data)
| HS Code | Product Description | Material/Type | Primary Function |
|---|---|---|---|
7326.19.00.80 |
Other Articles of Iron or Steel (Protective Ring/Component) | Steel/Iron | Structural protection, frames, or non-sealing mechanical parts. |
7326.90.86.88 |
Other Made Articles of Iron or Steel | Steel/Iron | General steel artifacts not specifically listed elsewhere. |
4016.93.50.10 |
Other Vulcanized Rubber Sealing/Buffer Articles | Rubber (Vulcanized) | Gaskets, Washers, Seals. Fits the "gasket/washer" functional attribute. |
4016.93.10.10 |
Other Vulcanized Rubber Sealing Articles | Rubber (Vulcanized) | Rubber Seals. Fits shape and usage as a sealing component. |
🔍 Key Insight:
- "Protection Ring" is NOT a standalone HS Code. You must declare based on Material + Function. - If the ring is metal, it’s likely 7326.xx. - If the ring is rubber and used to seal/fluid-tightness, it’s 4016.93.xx.
💰 III. 2026 Tariff Rate Breakdown (USA Import from China)
✅ Applicable Country: United States (US)
✅ Origin: China (CN)
✅ Effective Date: Current Trade Policies (Section 301 / IEEPA / Section 232)
🎯 1. Steel/Iron Protection Rings (HS: 7326.19.00.80 & 7326.90.86.88)
| Item | Details |
|---|---|
| Base Duty Rate | 2.9% (General Rate) |
| Section 301 Additional Duty | +25.0% (Trade War Tariff) |
| Section 232 Additional Duty | +50.0% (Steel/Aluminum Tariff) |
| Total Tariff Rate | 87.9% |
| Calculation Basis | CIF Value × 87.9% |
| De Minimis Exemption? | ❌ NO (High tariff rate exceeds threshold; strict scrutiny) |
| Legal Basis Path | USITC:7326.xx → FOOTNOTE:301.88.01 (25%) → FOOTNOTE:232.20.01 (50%) |
📌 Explanation:
- Steel products face a "Double Punishment":
1. 25% for being a Chinese-origin good under Section 301.
2. 50% for being a steel/aluminum product under Section 232 (National Security).
- Total burden: 87.9%. This is extremely high. Cost optimization is critical.
🎯 2. Rubber Protection Rings / Gaskets (HS: 4016.93.50.10 & 4016.93.10.10)
| Item | Details |
|---|---|
| Base Duty Rate | 2.5% (General Rate) |
| Section 301 Additional Duty | +25.0% (Trade War Tariff) |
| Section 122/Other Additional Duty | +10.0% (Specific steel/aluminum-related surcharge applied here per data) |
| Total Tariff Rate | 37.5% |
| Calculation Basis | CIF Value × 37.5% |
| De Minimis Exemption? | ❌ NO (Subject to full duty assessment) |
| Legal Basis Path | USITC:4016.93.xx → FOOTNOTE:301.88.01 (25%) → Other Footnotes (10%) |
📌 Explanation:
- Rubber goods are not subject to Section 232 Steel/Aluminum tariffs.
- However, they still face Section 301 (25%) and an additional 10% surcharge (likely due to specific trade policies or misclassification risks if deemed "steel-like").
- Total burden: 37.5%. Significantly cheaper than steel alternatives.
🛠️ IV. Customs Clearance Operational Advice (Pitfall Avoidance)
✅ 1. Required Documentation Checklist
| Document | Mandatory? | Explanation |
|---|---|---|
| Product Specification Sheet | ✔️ | Must clearly state Material (Steel vs. Rubber) and Function (Sealing vs. Structural). |
| Material Certificate | ✔️ | For steel: Mill test certificate. For rubber: Vulcanization standard. |
| Product Photos | ✔️ | Show cross-section to prove material. If rubber, show texture. If steel, show metal sheen/machining marks. |
| Commercial Invoice | ✔️ | Description must be precise: e.g., "Vulcanized Rubber Gasket" or "Steel Protective Retainer". Avoid vague "Protection Ring". |
| Packing List | ✔️ | Include weight and dimensions. |
✅ 2. Declaration Strategy (Key Rules)
🔥 "Material Defines HS, Function Confirms It!"
| Scenario | Recommended HS Code | Risk if Misdeclared |
|---|---|---|
| Steel Ring used as a Washer/Gasket | 7326.19.00.80 |
High risk of audit. Must prove it’s not a "part of machinery" with different duties. |
| Rubber Ring used as a Seal | 4016.93.50.10 |
If declared as steel by mistake, penalty + back taxes. |
| Rubber Ring used as a Spacer (Non-Sealing) | Possibly 4016.99 or 7326 |
Must prove non-sealing function. If it seals fluid, it MUST be rubber (4016). |
| Mixed Kit (Steel Ring + Rubber O-ring) | Separate Lines | Do not combine. Declare steel under 7326, rubber under 4016. |
✅ 3. Special Cases & Handling
| Situation | Action |
|---|---|
| OEM/Custom Protection Ring | Provide CAD drawings showing material and intended use. |
| "Stainless Steel" Claim | Still subject to 87.9% duty if of Chinese origin. No exemption for SS in Section 232. |
| "Nitrile" or "Silicone" Rubber | Falls under 4016.93. Confirm vulcanization. Unvulcanized rubber has different codes. |
| High-Value Precision Ring | Consider Advance Ruling (PAR) from US CBP to lock in HS Code and duty rate. |
🌍 V. Global Market Comparison (2026)
| Country/Region | Recommended HS Code | Est. Total Duty (China Origin) | Notes |
|---|---|---|---|
| 🇺🇸 USA | 7326.19.00.80 (Steel)4016.93.xx (Rubber) |
87.9% (Steel) 37.5% (Rubber) |
Section 232 Steel Tariff is the killer. Rubber is more cost-effective. |
| 🇨🇳 China | 7326.19.00.904016.93.10.90 |
~5-10% | Domestic trade unaffected by US tariffs. |
| 🇪🇺 EU | 7326.90.894016.93.98 |
0-2% | No Section 301/232 equivalents. Standard MFN rates apply. |
| 🇲🇽 Mexico | 7326.90.994016.93.01 |
0-5% (USMCA) | If assembled in Mexico, may qualify for 0% duty to US. |
📌 Conclusion:
- US Market is High-Risk for Steel Parts. The 87.9% rate erodes almost all profit margins.
- Rubber Parts are Preferable for cost-sensitive shipments to the US (37.5% vs 87.9%).
- Alternative Supply Chains: Consider sourcing from Vietnam, Mexico, or Thailand to avoid Section 301/232 tariffs.
📌 VI. Common Errors & Pitfalls (Lessons Learned)
❌ Error 1: Declaring a Steel Gasket as a "Machine Part" under 8483 to avoid Section 232.
👉 Consequence: CBP will reclassify under 7326, assess 87.9% + Penalties.
❌ Error 2: Using vague description "Protection Ring" without material specification.
👉 Consequence: Customs may hold shipment for inspection, leading to delays and storage fees.
❌ Error 3: Assuming Stainless Steel is exempt from Section 232.
👉 Consequence: It is NOT. All steel/aluminum from China faces 10-25% extra on top of base duties.
✅ Correct Practice:
"Stainless Steel Protective Retainer Ring, CNC Machined, for Hydraulic Pump, HS: 7326.19.00.80"
"Vulcanized Nitrile Rubber Gasket Ring, OD 100mm, ID 80mm, for Water Pipe, HS: 4016.93.50.10"
🎯 VII. Conclusion: Precision Declares, Profits Protect!
🎯 Remember:
🔹 "Steel Ring = 87.9% Pain" (Section 232 + 301)
🔹 "Rubber Ring = 37.5% Manageable" (Section 301 Only)
🔹 "Vague Description = Customs Hold"
📌 Pro Tip:
If your "Protection Ring" is critical for sealing, ensure it’s rubber-based if shipping to the US. If it must be steel for durability, calculate if the cost difference justifies the 50% Section 232 tariff. Consider substantial transformation in a third country (e.g., Vietnam) to re-origin the goods.
📣 Immediate Action:
📞 Confirm material with supplier.
📄 Prepare material certs.
🚀 Apply for Pre-Ruling if shipment value > $10,000.
✨ Accurate Classification Saves Money!
💼 Your Duty Bill Should Reflect Reality, Not Hope!
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.