Fire Extinguishing Agent Conduit Pipe
CN → US| HS编码 | 关税税率 | 原产国 | 目的国 | 文档 |
|---|---|---|---|---|
| 3917390050 | 13.1% | CN | US | 官方文档 |
| 3917290090 | 38.1% | CN | US | 官方文档 |
| 8424900500 | 17.5% | CN | US | 官方文档 |
| 7307110060 | 14.8% | CN | US | 官方文档 |
| 8424909080 | 85.0% | CN | US | 官方文档 |
商品图片
AI分析
🚒 Fire Extinguishing Agent Conduit Pipe
🌐 HS Code Reference & Customs Clearance Guide | 2024/2025 Latest Tariff Analysis | Professional Entry Strategy
📌 I. Product Definition & Classification: What exactly is a "Fire Extinguishing Agent Conduit Pipe"?
Fire Extinguishing Agent Conduit Pipes are critical components of fire protection systems, designed to transport extinguishing agents (such as water, foam, CO₂, or dry chemical powder) from the source to the discharge nozzles.
In international trade, these pipes are not classified as a single uniform product. The Harmonized System (HS) classification depends heavily on three factors: 1. Material: Plastic, Metal (Iron/Steel), or Rubber. 2. Function/End-Use: Is it a standalone pipe, a part of a fire extinguisher, or an accessory for piping systems? 3. Connection Type: Is it a simple tube, a fitting/connector, or a specialized hose?
⚠️ Key Distinction Point:
- If it is a plastic pipe used for conveying fluids → Likely Chapter 39.
- If it is a metal pipe/fitting used for standard piping → Likely Chapter 73.
- If it is considered a part of a fire extinguisher appliance → Likely Chapter 84.
📦 II. HS Code Classification Details (2024/2025 Latest Tariff Authority Comparison)
| HS Code | Product Description | Applicable Scenario | Material/Function |
|---|---|---|---|
3917.39.00.50 |
Other tubes, pipes, and hoses, and fittings thereof, not elsewhere specified or included | Standalone plastic conduit pipes for fire suppression systems | Plastic |
3917.29.00.90 |
Other tubes, pipes, and hoses, rigid, of plastics | Rigid plastic pipes, often with higher trade restrictions | Plastic |
8424.90.05.00 |
Parts of mechanical appliances for projecting, dispersing, or spraying liquids or powders | Fire Extinguisher Parts: Pipes/hoses specifically identified as components of extinguishers | Metal/Rubber |
7307.11.00.60 |
Tubes, pipes, and hollow profiles, of iron or steel, threaded or not (Fittings) | Iron/Steel Pipe Fittings: Connectors, joints, or fittings for metal piping systems | Iron/Steel |
8424.90.90.80 |
Parts of other apparatuses for projecting, dispersing, or spraying liquids or powders | General "Other Parts" for spraying machinery, often used when specific material codes don't fit | Various (Steel/Aluminum/Copper) |
🔍 Key Reminder:
- Plastic Pipes (3917...) are heavily impacted by Section 301 Tariffs (25%) and 122 Section Tariffs (10%).
- Metal Fittings (7307...) have lower base tariffs but still face the 122 Section tariff.
- Parts of Extinguishers (8424.90.05.00) may have 0% base tariff but still attract Section 232/122 surcharges depending on specific customs rulings.
💰 III. 2024/2025 Latest Tariff Rate Breakdown (Including Additional Duties)
✅ Applicable Country: United States (US)
✅ Origin: China (CN)
✅ Effective Time: Current as of latest trade action updates
🎯 1. 3917.39.00.50 —— Plastic Conduit Pipes
| Item | Detail |
|---|---|
| Base Tariff | 3.1% (ad valorem) |
| Section 301 Tariff | 0.0% (Not listed in current 301 exclusion for this specific subheading in some contexts, or excluded) |
| Section 122 Tariff | 10.0% (Targeted at specific Chinese imports) |
| Total Tax Rate | 13.1% |
| Tax Calculation | CIF Value × 13.1% |
| De Minimis Exemption | ❌ Not Applicable (Value usually exceeds $800) |
| Legal Basis Path | HTSUS:3917.39.00.50 → USITC:122 |
📌 Explanation:
- This code is for plastic pipes not otherwise specified.
- The 13.1% rate is significantly lower than other plastic codes because it avoids the 25% Section 301 tariff.
- Customs Warning: Ensure the product is strictly "Plastic" and not "Rigid PVC" which might fall under3917.29(see below).
🎯 2. 3917.29.00.90 —— Other Rigid Plastic Pipes
| Item | Detail |
|---|---|
| Base Tariff | 3.1% |
| Section 301 Tariff | 25.0% (Highly restricted category) |
| Section 122 Tariff | 10.0% |
| Total Tax Rate | 38.1% |
| Tax Calculation | CIF Value × 38.1% |
| De Minimis Exemption | ❌ Not Applicable |
| Legal Basis Path | HTSUS:3917.29.00.90 → USITC:301 → USITC:122 |
📌 Critical Warning:
- If your pipe is deemed "Rigid" and falls under this subheading, the tax jumps to 38.1%.
- This is due to the 25% Section 301 tariff applied to many plastic products from China.
- Strategy: Confirm with suppliers if the pipe can be classified under3917.39(softer/flexible/other) to save 25%.
🎯 3. 8424.90.05.00 —— Parts of Fire Extinguishers
| Item | Detail |
|---|---|
| Base Tariff | 0.0% |
| Section 232 Tariff | 7.5% (Steel/Aluminum related, but applied broadly in some rulings) |
| Section 122 Tariff | 10.0% |
| Total Tax Rate | 17.5% |
| Tax Calculation | CIF Value × 17.5% |
| De Minimis Exemption | ❌ Not Applicable |
| Legal Basis Path | HTSUS:8424.90.05.00 → USITC:232 → USITC:122 |
📌 Explanation:
- This code is ideal if the pipe is explicitly marketed as a replacement part for a fire extinguisher.
- Base tariff is 0%, but the 17.5% total still applies due to additional duties.
- Key Advantage: Lower than the 38.1% for rigid plastics.
🎯 4. 7307.11.00.60 —— Iron/Steel Pipe Fittings
| Item | Detail |
|---|---|
| Base Tariff | 4.8% |
| Section 301 Tariff | 0.0% (Often excluded for specific fittings) |
| Section 122 Tariff | 10.0% |
| Total Tax Rate | 14.8% |
| Tax Calculation | CIF Value × 14.8% |
| De Minimis Exemption | ❌ Not Applicable |
| Legal Basis Path | HTSUS:7307.11.00.60 → USITC:122 |
📌 Explanation:
- For metal (iron/steel) fittings (connectors, joints).
- 14.8% is a competitive rate, slightly higher than plastic3917.39but much lower than rigid plastic3917.29.
- Ensure the product is clearly a fitting (threaded/unthreaded connector) rather than a long pipe.
🎯 5. 8424.90.90.80 —— Other Parts of Spraying Appliances
| Item | Detail |
|---|---|
| Base Tariff | 0.0% |
| Section 301 Tariff | 25.0% |
| Section 122 Tariff | 10.0% |
| Steel/Aluminum/Copper Surcharge | +50.0% (If material is steel/aluminum/copper) |
| Total Tax Rate | 85.0% (Up to) |
| Tax Calculation | CIF Value × 85.0% |
| De Minimis Exemption | ❌ Not Applicable |
| Legal Basis Path | HTSUS:8424.90.90.80 → USITC:301 → USITC:122 |
🚨 DANGER ZONE:
- This is the highest risk code.
- If the pipe is made of Steel, Aluminum, or Copper, and falls under "Other Parts," you may face an additional 50% tariff.
- Total Tax: 85% is devastating for margins.
- Avoid this code if possible by using8424.90.05.00(if applicable) or7307...(if fittings).
🛠️ IV. Customs Clearance Practical Advice (Pitfall Avoidance Guide)
✅ 1. Preparation Checklist (Essential Documents)
| Document | Required | Notes |
|---|---|---|
| Product Specification Sheet | ✔️ | Must specify Material (Plastic/Metal), Diameter, Pressure Rating. |
| Product Photos | ✔️ | Show ends (threaded? smooth?), joints, and any markings. |
| Commercial Invoice | ✔️ | Description must match HS Code logic (e.g., "Plastic Conduit Pipe" vs. "Steel Fitting"). |
| Bill of Lading | ✔️ | Ensure packaging quantity matches invoice. |
| Letter of Explanation | Optional but Recommended | If borderline between 8424.90.05.00 (Parts) and 3917... (Pipes), explain why it's a part. |
✅ 2. Declaration Tips (Key Mnemonics)
🔥 "Material First, Function Second. Don't Mix Codes!"
| Situation | Correct Declaration | Common Error |
|---|---|---|
| Plastic Pipe | Use 3917.39.00.50 (13.1%) |
Using 3917.29.00.90 → 38.1% (Save 25%!) |
| Metal Connector/Fitting | Use 7307.11.00.60 (14.8%) |
Using 8424.90.90.80 → 85% (Avoid!) |
| Pipe as Extinguisher Part | Use 8424.90.05.00 (17.5%) |
Using 3917.39 if it's clearly metal/exclusive part |
| Mixed Package (Pipe+Fittings) | Declare separately or use main component | Combine into one code → Audit Risk |
✅ 3. Special Scenarios
| Scenario | Recommendation |
|---|---|
| OEM for Fire System Manufacturer | Provide a Letter from Buyer stating these are "Parts of Fire Extinguishing Systems" to support 8424.90.05.00. |
| Plastic vs. Rigid Plastic | If the pipe is flexible or semi-rigid, argue for 3917.39 (13.1%). If rigid PVC/CPVC, expect 3917.29 (38.1%). |
| Metal Pipes | If long pipes (not fittings), they may still fall under 7306 (Pipes of Iron/Steel). Check base rate (often 0-2.5%) + 301/122. If they are fittings/joints, use 7307 (14.8%). |
| Steel/Aluminum/Copper Parts | Avoid 8424.90.90.80. Use specific material chapters (73, 76, 74) + 301/122 instead of the "Other Parts" code which triggers the 50% surcharge. |
🌍 V. Global Market Clearance Comparison (2024/2025)
| Country/Region | Recommended HS Code | Tariff Rate (China Origin) | Certification Required | Notes |
|---|---|---|---|---|
| 🇺🇸 USA | 3917.39.00.50 / 7307.11.00.60 |
13.1% - 14.8% | UL, FM (Optional but recommended) | Highest complexity due to 301/122 tariffs. |
| 🇨🇳 China | 3917 / 7307 |
Low/Zero | CCC (if applicable) | No additional tariffs. |
| 🇪🇺 EU | 3917 / 7307 |
0% - 4.5% | CE, LPCB (For fire safety) | No Section 301/122 equivalents. |
| 🇬🇧 UK | 3917 / 7307 |
0% - 4.5% | UKCA | Post-Brexit rules apply. |
📌 Conclusion:
- The US market is the most challenging due to Section 301 (25%) and Section 122 (10%) tariffs.
- European Union and China have much lower barriers.
- Strategy: For US exports, prioritize3917.39(Plastic, 13.1%) and7307(Metal Fittings, 14.8%). Avoid "Parts" codes (8424.90.90) that trigger 85% rates.
📌 VI. Common Mistakes & Pitfalls (Lessons Learned)
❌ Mistake 1: Classifying Plastic Pipes as 3917.29 (Rigid)
👉 Result: Tax jumps from 13.1% to 38.1% → Loss of Profit.
👉 Fix: Prove flexibility or use "Other" subheading.
❌ Mistake 2: Classifying Steel Pipes/Fittings as 8424.90.90.80 (Other Parts)
👉 Result: Tax hits 85% (due to 50% steel surcharge) → Catastrophic Cost.
👉 Fix: Use Chapter 73 (7307) for metal fittings.
❌ Mistake 3: Ignoring Section 122 Tariff (10%)
👉 Result: Even with 0% Base Tariff, you pay 10-35% extra.
👉 Fix: Factor this into all China-origin imports.
✅ Correct Approach:
"Plastic Fire Conduit Pipe, Flexible, 2-inch Diameter, Model ABC" →
3917.39.00.50
"Steel Pipe Connector, Threaded, 1-inch, Model DEF" →7307.11.00.60
🎯 VII. Conclusion: Professional Declaration Saves Money!
🎯 Remember the Mantra:
🔹 "Plastic Flexible? 13.1%. Plastic Rigid? 38.1%!"
🔹 "Steel Fitting? 14.8%. Steel Part? 85%!"
🔹 "Part of Extinguisher? 17.5%. Other Part? 85%!"
📌 Pro Tip:
If your product is exclusively used for fire extinguishers, get a Pre-Ruling (Advance Ruling) from US CBP to confirm
8424.90.05.00(17.5%) instead of generic pipe codes. This can provide legal certainty and potentially avoid the highest tariffs.
📣 Immediate Action:
📞 Consult your customs broker with product photos and material specs.
🚀 Optimize your HS Code to save up to 70% in duties.
✨ Professional Customs Clearance Starts with Precise Classification!
💼 Your Profit Margin Depends on This 8-Digit Code!
用户评价
关于 HS 编码归类
协调制度(HS)是由世界海关组织(WCO)制定的国际贸易商品分类标准。全球 200 多个国家采用 HS 系统作为海关关税、贸易统计和进出口监管的基础。
每个 HS 编码遵循以下层级结构:
- 章(2 位)——商品大类(例如:第 84 章:机器和机械设备)
- 品目(4 位)——章内的更具体分类
- 子目(6 位)——国际通用细分,所有 WCO 成员国统一使用
- 本国细分(8-10 位)——各国自行扩展的细分编码,如美国 HTSUS 10 位编码
正确的 HS 编码归类对于顺利通关、准确缴纳关税和遵守贸易法规至关重要。错误归类可能导致海关延误、多缴关税或罚款。
从CN进口到US时,适用的关税税率可能包括:
- 最惠国(MFN)税率——适用于 WTO 成员国的标准关税税率
- 普通税率——适用于无贸易协定国家
- 贸易救济关税——附加关税,如 301 条款(反倾销)、232 条款(国家安全)或反补贴税
本页内容仅供参考。如需正式归类,请咨询当地海关或持牌报关代理。