High Strength Refractory Castable
CN → US| HS编码 | 关税税率 | 原产国 | 目的国 | 文档 |
|---|---|---|---|---|
| 6902101000 | 35.0% | CN | US | 官方文档 |
| 6903900050 | 35.0% | CN | US | 官方文档 |
| 3816002050 | 38.0% | CN | US | 官方文档 |
| 3816001000 | 35.0% | CN | US | 官方文档 |
| 6902105000 | 35.0% | CN | US | 官方文档 |
商品图片
AI分析
🧱 High Strength Refractory Castable (Magnesia-Based)
🌐 HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Strategic Clearance Strategy
📌 I. Product Definition & Classification: Do You Really Understand "Refractory Castable"?
High Strength Refractory Castable is a pre-mixed, dry mixture of refractory aggregates, powders, and binders that hardens into a monolithic structure when mixed with water and cured. In international trade, specifically for Magnesia-based (MgO) products, classification hinges on two critical factors:
1. Physical Form: Is it a finished "ceramic article" or a "mortar/concrete-like" mixture?
2. Chemical Composition: Is it primarily classified under ceramic chapters (Ch 69) or chemical products (Ch 38)?
⚠️ Key Distinction Points:
- If it is a fired ceramic brick/piece or strictly defined ceramic article → Falls under Chapter 69 (Ceramics).
- If it is an unfired mixture (powder/binder) ready for casting → May fall under Chapter 38 (Miscellaneous Chemical Products).
- Crucial Note: For US imports from China, both categories face significant "Section 301" and "122 Clause" tariffs.
📦 II. HS Code Classification Details (2026 Latest Tariff Authority Comparison)
| HS Code | Product Description | Application Scenario | Classification Logic |
|---|---|---|---|
6902.10.10.00 |
Magnesia-based Refractory Castable, classified as Magnesia material, in the form of refractory ceramic building products | Pre-fired ceramic castables or specific ceramic forms | ✅ Ceramic Chapter (Ch 69) |
6903.90.00.50 |
Magnesia-based Refractory Castable, classified as other refractory ceramic articles, non-clay based | Other unfired or semi-fired ceramic refractories | ✅ Ceramic Chapter (Ch 69) |
3816.00.20.50 |
Magnesia-based Refractory Castable, classified as refractory cement, mortar, concrete, and similar preparations | Dry mixtures (powders) requiring on-site mixing with water | ❌ Chemical Chapter (Ch 38) |
3816.00.10.00 |
Magnesia-based Refractory Castable, material belongs to refractory category, form is castable | General refractory chemical preparations | ❌ Chemical Chapter (Ch 38) |
6902.10.50.00 |
Magnesia-based Refractory Castable, refractory ceramic building products meeting specific Magnesium element content requirements | High-purity MgO ceramic articles | ✅ Ceramic Chapter (Ch 69) |
🔍 Important Reminder:
- Chapter 69 (6902/6903): Applies to fired ceramics or items explicitly defined as ceramic articles.
- Chapter 38 (3816): Applies to unfired mixtures (mortars/concretes) used for lining furnaces.
- Do NOT mix these: Misclassifying a dry mix as a fired ceramic can lead to severe penalties for undervaluation or misdeclaration.
💰 III. 2026 Latest Tariff Rate Breakdown (Including Surtaxes & Policy Add-ons)
✅ Applicable Country: United States (US)
✅ Origin: China (CN)
✅ Effective Date: Current tariffs apply as per data.
🎯 1. Ceramic Classification (6902.10.10.00, 6903.90.00.50, 6902.10.50.00)
| Item | Content |
|---|---|
| Base Tariff Rate | 0.0% (Ad Valorem) |
| Section 301 Surtax | +25.0% (Additional Tariff) |
| Section 122 Tariff | +10.0% (Specific Trade Action Tariff) |
| Total Effective Rate | 35.0% |
| Tax Calculation | CIF Value × 35% |
| De Minimis Exemption | ❌ NOT Applicable (High risk of seizure/de minimis abuse check) |
| Legal Basis Path | USITC:6902.10.10.00 → SECTION301:25% → SECTION122:10% |
📌 Explanation:
- The base rate for these ceramics is 0% due to specific duty-free treatments for certain refractory ceramics.
- However, the 25% Section 301 tariff applies to all Chinese goods in this category (with minor exceptions not listed here).
- The 10% Section 122 tariff is a separate punitive tariff on Chinese imports.
- Total Burden: 35%. This is a high-cost entry.
🎯 2. Chemical/Mortar Classification (3816.00.20.50, 3816.00.10.00)
| Item | Content |
|---|---|
| Base Tariff Rate | 3.0% (Ad Valorem) |
| Section 301 Surtax | +25.0% (Additional Tariff) |
| Section 122 Tariff | +10.0% (Specific Trade Action Tariff) |
| Total Effective Rate | 38.0% |
| Tax Calculation | CIF Value × 38% |
| De Minimis Exemption | ❌ NOT Applicable |
| Legal Basis Path | USITC:3816.00.20.50 → SECTION301:25% → SECTION122:10% |
📌 Explanation:
- These items are classified under Chapter 38 (Miscellaneous Chemical Products).
- Unlike Chapter 69, these have a 3% base tariff.
- The same 25% and 10% surtaxes apply.
- Total Burden: 38%. This is the highest cost scenario.
🛠️ IV. Customs Clearance Practical Advice (Battle-Tested Pitfall Guide)
✅ 1. Preparation Checklist (Missing items = Delay/Seizure)
| Document | Required | Notes |
|---|---|---|
| ✅ Product Specification Sheet | ✔️ | Must detail MgO content, particle size, and binder type. |
| ✅ Material Safety Data Sheet (MSDS) | ✔️ | Critical for chemical classification (Ch 38 vs Ch 69). |
| ✅ Product Photos | ✔️ | Show powder form (for Ch 38) OR fired shape (for Ch 69). |
| ✅ Commercial Invoice | ✔️ | Clearly state "Refractory Castable, Magnesia-based". |
| ✅ Packing List | ✔️ | Weight and dimensions must match invoice. |
| ✅ Certificate of Origin | ✔️ | Essential to confirm CN origin and apply surtaxes correctly. |
| ✅ Third-Party Lab Report | ✔️ | Proving MgO content helps defend against misclassification. |
✅ 2. Declaration Strategy (Key Mnemonic)
🔥 "Form Determines Chapter, Chapter Determines Tariff!"
| Scenario | Correct HS Code | Tariff Rate | Risk if Wrong |
|---|---|---|---|
| Dry Powder Mix (needs water to set) | 3816.00.xxxx |
38% | Under-declared if classified as Ch 69; Over-declared if Ch 69. |
| Fired Ceramic Shape | 6902.10.xxxx or 6903.90.xxxx |
35% | If misclassified as Ch 38, you overpay 3%. |
| Semi-fired Brick | 6902.10.50.00 |
35% | Ensure it meets "Ceramic Article" definition. |
💡 Pro Tip:
- If your product is a dry mix, it is Ch 38. Do not try to force it into Ch 69 just to save 3%. The legal risk of misdeclaring a chemical mixture as a ceramic is severe.
- If your product is pre-formed fired bricks, it is Ch 69.
✅ 3. Special Handling Cases
| Situation | Recommendation |
|---|---|
| OEM Private Label | Ensure the invoice lists the generic name "Refractory Castable" rather than just a brand name. |
| Mixed Shipment | Separate Ch 38 and Ch 69 items into different lines if possible for clarity. |
| Sample Imports | Even samples are subject to tariffs. De minimis ($800) is risky for industrial chemicals/ceramics if flagged. |
🌍 V. Global Market Clearance Comparison (2026 Update)
| Country/Region | Recommended HS Code | Tariff Rate | Certification | Notes |
|---|---|---|---|---|
| 🇺🇸 USA | 6902.10.10.00 / 3816.00.20.50 |
35% - 38% | None specific | Highest tariffs globally for CN origin. |
| 🇨🇳 China (Import) | 6902 / 3816 |
5% - 8% | CCC (if applicable) | Lower barriers, but check environmental certs. |
| 🇪🇺 EU | 6902 / 3816 |
0% - 6% | REACH Compliance | No Section 301/122 tariffs. |
| 🇮🇳 India | 6902 / 3816 |
10% - 20% | BIS Standard | High protective duties. |
📌 Conclusion:
- The US market is the most challenging for Chinese refractory castables due to the cumulative 35-38% tariff burden.
- EU and China offer significantly lower cost entries.
- Strategy: Consider transshipment (with legal caution) or local sourcing if targeting the US market to mitigate tariff risks.
📌 VI. Common Mistakes & Pitfalls (Lessons Learned)
❌ Mistake 1: Declaring dry powder as "Ceramic Tiles" (6902.10)
👉 Consequence: Customs audit reveals chemical composition. Penalty + Back Duties.
👉 Fix: Use Ch 38 for dry mixes.
❌ Mistake 2: Ignoring Section 122 Tariff in calculation
👉 Consequence: Underestimating landed cost by 10%. Margin Compression.
👉 Fix: Always add +10% for US imports from CN.
❌ Mistake 3: Using vague descriptions like "Refractory Material"
👉 Consequence: Customs detention for insufficient information. Delay.
👉 Fix: Specify "Magnesia-based Refractory Castable, HS 6902.10.10.00".
✅ Correct Declaration Example:
"High Strength Magnesia-based Refractory Castable, Dry Powder Mix, HS Code 3816.00.20.50, Origin China"
🎯 VII. Conclusion: Precision Classification Saves Money!
🎯 Remember the Mantra:
🔹 "Powder is Ch38 (38%), Ceramic is Ch69 (35%), Section 122 is Always 10%!"
🔹 "Check the Form, Check the Origin, Check the Surcharge!"
📌 Pro Tip:
- If your supplier is NOT from China (e.g., Vietnam, Turkey, Russia), you may avoid Section 301 and 122 tariffs, reducing rates to 0-6%.
- Apply for an Advance Ruling from US CBP if you are unsure about the form (Powder vs. Fired).
📣 Immediate Action:
📞 Contact a Licensed Customs Broker
📄 Provide MSDS and Product Photos
🚀 Calculate Landed Cost with 35-38% Tariff in Mind
✨ Professional Clearance Starts with Accurate Classification!
💼 Your Profit Margin Depends on the Last Percent!
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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
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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
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