General Engineering Seamless Steel Pipe
CN → US| HS编码 | 关税税率 | 原产国 | 目的国 | 文档 |
|---|---|---|---|---|
| 7304901000 | 35.0% | CN | US | 官方文档 |
| 7304903000 | 17.5% | CN | US | 官方文档 |
商品图片
AI分析
🏭 General Engineering Seamless Steel Pipe
🌐 HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Customs Strategy
📌 I. Product Definition & Classification: Do You Really Understand "Seamless Steel Pipe"?
Seamless steel pipes are hollow, long steel products with no longitudinal or spiral welds, produced by piercing solid steel billets. In international trade, they are primarily classified under HS Code 7304. The critical distinction lies in the material composition and wall thickness.
⚠️ Key Classification Criteria:
- Wall Thickness: Must be 4 mm or more to fall under the specific subheadings provided in the data.
- Material: Must distinguish between Non-alloy Steel (Iron/Steel) and Alloy Steel.
- Form: Must be Seamless (not welded).
- Profile: Hollow profiles, tubes, pipes.
📦 II. HS Code Classification Details (Based on Provided Data)
| HS Code | Product Description | Material Type | Wall Thickness |
|---|---|---|---|
7304.90.10.00 |
Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: Other: Having a wall thickness of 4 mm or more: Of iron or nonalloy steel | Non-alloy Steel / Iron | ≥ 4 mm |
7304.90.30.00 |
Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: Other: Having a wall thickness of 4 mm or more: Of alloy steel | Alloy Steel | ≥ 4 mm |
🔍 Critical Distinction:
- Non-alloy Steel: Standard carbon steel without significant amounts of alloying elements (like Chromium, Nickel, Molybdenum).
- Alloy Steel: Steel containing additional elements to enhance properties (strength, corrosion resistance, heat resistance).
- Wall Thickness Rule: Pipes with a wall thickness less than 4 mm are classified differently (typically under 7304.21-7304.39). The data provided only applies to pipes with wall thickness ≥ 4 mm.
💰 III. 2026 Latest Tariff Rate Breakdown (Including Additional Duties)
✅ Applicable Countries: United States (US)
✅ Origin: China (CN)
✅ Effective Time: Current tariffs apply (as per provided data)
🎯 1. 7304.90.10.00 —— Seamless Pipes of Iron or Non-alloy Steel (Wall Thickness ≥ 4mm)
| Item | Content |
|---|---|
| Base Tariff | 0.0% |
| Additional Tariff (Section 301 / USITC) | 25.0% |
| Total Tax Rate | 25.0% |
| Tax Calculation | CIF Value × 25% |
| De Minimis Exemption | ❌ Not Applicable (Section 301 duties generally apply to all commercial imports) |
| Legal Basis | USITC Harmonized Tariff Schedule HTSUS 7304.90.10.00 |
📌 Explanation:
- The 0% base tariff reflects the standard MFN (Most Favored Nation) rate for industrial steel products.
- The 25% additional tariff is a significant trade barrier imposed under Section 301 of the Trade Act of 1974, targeting specific Chinese steel products.
- Total Cost Impact: For every $10,000 of imported seamless non-alloy steel pipes (wall ≥ 4mm), expect $2,500 in duties.
🎯 2. 7304.90.30.00 —— Seamless Pipes of Alloy Steel (Wall Thickness ≥ 4mm)
| Item | Content |
|---|---|
| Base Tariff | 0.0% |
| Additional Tariff (Section 301 / USITC) | 7.5% |
| Total Tax Rate | 7.5% |
| Tax Calculation | CIF Value × 7.5% |
| De Minimis Exemption | ❌ Not Applicable |
| Legal Basis | USITC Harmonized Tariff Schedule HTSUS 7304.90.30.00 |
📌 Explanation:
- Alloy steels often enjoy lower additional tariffs compared to non-alloy steels due to different strategic categorizations or historical trade agreements.
- Total Cost Impact: For every $10,000 of imported seamless alloy steel pipes (wall ≥ 4mm), expect $750 in duties.
- Note: This is significantly cheaper than the non-alloy counterpart (25%). Proper material certification is crucial to qualify for this lower rate.
🛠️ IV. Customs Clearance Operational Advice (Practical Pitfall Avoidance)
✅ 1. Required Documentation Checklist
| Document | Mandatory? | Purpose |
|---|---|---|
| Product Specification Sheet | ✅ Yes | Must explicitly state: Seamless, Material Composition (e.g., ASTM A106 Gr B, AISI 4140), Outer Diameter (OD), and Wall Thickness. |
| Mill Test Certificate (MTC) | ✅ Yes | Critical to prove Alloy vs. Non-alloy steel. Must list chemical composition. |
| Commercial Invoice | ✅ Yes | Clearly describe as "Seamless Steel Pipe" and specify HS Code if known. |
| Packing List | ✅ Yes | Detail weight, dimensions, and quantity. |
| Bill of Lading/Air Waybill | ✅ Yes | Standard shipping document. |
| Country of Origin Certificate | ✅ Yes | To determine applicability of additional tariffs. |
✅ 2. Declaration Tips (Key Mantras)
🔥 "Wall Thickness Check, Material Cert First, Name It Seamless, Avoid the Penalty!"
| Scenario | Correct Declaration | Wrong Practice |
|---|---|---|
| Non-alloy Steel, Wall ≥ 4mm | 7304.90.10.00 |
Declaring as "Welded Pipe" → Incorrect classification, potential penalties. |
| Alloy Steel, Wall ≥ 4mm | 7304.90.30.00 |
Declaring as "Non-alloy" → 25% duty instead of 7.5% (Overpayment). |
| Wall Thickness < 4mm | Not in provided data | Using 7304.90.10/30 → Incorrect HS Code, risk of seizure or fine. |
| Welded Pipe | Not in provided data | Using Seamless HS Code → Severe Misdeclaration, high risk of audit. |
📌 Warning:
- Wall Thickness Measurement: Customs may physically measure pipes. Ensure your declared thickness is minimum wall thickness per standards (e.g., ASTM).
- Alloy Certification: If customs doubts your alloy claim, they may reclassify to non-alloy (25% duty) unless you provide valid MTCs.
🌍 V. Global Market Comparison (2026 Snapshot)
| Country/Region | Recommended HS Code | Tariff Rate (China Origin) | Key Requirements | Notes |
|---|---|---|---|---|
| 🇺🇸 USA | 7304.90.10.00 / 7304.90.30.00 |
25% / 7.5% | MTC, Precise Dimensions | High additional duties; critical to correct classification. |
| 🇨🇳 China | 7304.90.10 / 7304.90.30 | ~5-10% | CCC (if applicable) | Lower duties; domestic steel is abundant. |
| 🇪🇺 EU | 7304.90.10 / 7304.90.30 | 0% (if no anti-dumping) | CE Marking (if pressure equipment) | Check for anti-dumping duties on Chinese steel pipes (common in EU). |
| 🇬🇧 UK | 7304.90.10 / 7304.90.30 | 0% (UK Global Tariff) | UKCA Marking | Post-Brexit rules apply; check for anti-dumping. |
| 🇮🇳 India | 7304.90.10 / 7304.90.30 | Varies (up to 10-15%) | BIS Certification | Often imposes anti-dumping duties on Chinese steel pipes. |
📌 Conclusion:
- The US market is the most challenging due to high Section 301 tariffs.
- Alloy steel pipes are more tariff-efficient in the US (7.5% vs. 25%).
- Always verify anti-dumping and countervailing duties (AD/CVD) in target markets, as these often stack on top of MFN tariffs.
📌 VI. Common Errors & Pitfalls (Lessons Learned)
❌ Error 1: Confusing Seamless with Welded Pipes
👉 Consequence: Incorrect HS Code (e.g., 7306 vs. 7304). Welded pipes have different tariffs and may be subject to different trade remedies.
❌ Error 2: Ignoring Wall Thickness
👉 Consequence: If wall thickness is < 4mm, the provided HS Codes (7304.90.10.30) are invalid. You must use subheadings for thinner walls (e.g., 7304.21, 7304.31).
❌ Error 3: Misidentifying Alloy vs. Non-alloy
👉 Consequence: Claiming 7.5% for a non-alloy pipe leads to underpayment and penalties. Conversely, classifying alloy as non-alloy leads to overpayment (25% instead of 7.5%).
❌ Error 4: Incomplete Material Certification
👉 Consequence: Customs holds the shipment for inspection until MTCs are provided, causing delays and demurrage charges.
✅ Correct Practice:
"Seamless Steel Pipe, ASTM A106 Grade B, Non-alloy, Outer Diameter 60mm, Wall Thickness 5mm, Mill Test Certificate Attached."
🎯 VII. Conclusion: Precision in Classification Saves Money!
🎯 Remember the Mantra:
🔹 "Seamless, Wall ≥ 4mm, Check Alloy: Non-alloy pays 25%, Alloy pays 7.5%!"
🔹 "MTC is Your Shield, Wall Thickness is Your Key!"
📌 Pro Tip:
- If your pipes are alloy steel, ensure the supplier provides a detailed Mill Test Certificate (MTC) with chemical composition to justify the 7.5% rate.
- If your pipes are non-alloy, consider if supply chain diversification (e.g., sourcing from Vietnam or Mexico) could avoid the 25% US tariff, though this depends on rules of origin.
📣 Immediate Action:
📞 Contact a licensed customs broker.
📄 Provide exact material specs (ASTM/EN standards) and wall thickness.
📉 Calculate landed cost with the correct 25% or 7.5% duty before importing.
✨ Professional Customs Clearance Starts with Accurate Classification!
💼 Every Percentage Point in Duty Counts!
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。