金属焊接专用润滑剂
CN → US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 3811190000 | 41.5% | CN | US | Official Doc |
| 3824994900 | 41.5% | CN | US | Official Doc |
| 3811900000 | 41.5% | CN | US | Official Doc |
| 3403191000 | 35.2% | CN | US | Official Doc |
| 3824992900 | 41.5% | CN | US | Official Doc |
AI Analysis
⚙️ Metal Brazing Lubricants (Fluxes & Bonding Agents)
🌐 HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional-Level Strategy
📌 I. Product Definition & Classification: Do You Really Understand "Brazing Lubricants"?
Metal brazing lubricants (often referred to as brazing fluxes or bonding agents in industry) are chemical preparations used to facilitate the joining of metals by brazing. Their primary function is to remove oxides from metal surfaces, promote the flow of filler metal, and protect the joint from oxidation during heating.
In international trade, these products are broadly categorized based on their chemical composition and primary function:
- Chemical Mixtures & Preparations (Chapter 38): Most brazing lubricants are complex chemical mixtures containing borates, fluorides, salts, and organic carriers. These typically fall under HS Code 3824.
- Mineral Oil Preparations (Chapter 34): If the lubricant is primarily a mineral oil-based paste or liquid with minor additives, it may fall under HS Code 3403.
- Prepared Additives (Chapter 38): Specific preparations designed to modify properties or assist in processing (such as casting or welding aids) often fall under HS Code 3811.
⚠️ Key Distinction Point:
- If the product is chemical-based (salts, borates, fluorides) → 3824.99 or 3811.
- If the product is oil-based (petroleum oils, mineral oils) → 3403.19.
- Misclassification between "Chemical Preparation" and "Oil Preparation" is the most common cause of customs delays and incorrect duty assessments.
📦 II. HS Code Classification Details (2026 Latest Tariff Authority Comparison)
| HS Code | Product Description | Application Scenario | Composition Basis |
|---|---|---|---|
3811.19.00.00 |
Prepared additives for lubricants; not containing petroleum oils or bituminous materials in >90% | General brazing fluxes, liquid chemical additives | ✅ Chemical Additives / Liquid |
3824.99.49.00 |
Prepared binding agents for foundry molds/core; other chemical products and preparations | Chemical mixtures, proprietary brazing pastes | ✅ Chemical Mixture |
3811.90.00.00 |
Other prepared additives for lubricants; semi-solid or liquid mineral oil preparations | Mineral oil-based brazing lubricants | ✅ Mineral Oil Preparation |
3403.19.10.00 |
Preparations for treating leather, furs, skin or other materials, other than oils; other lubricant preparations | Lubricants containing 50%-70% petroleum oil (Fallback category) | ✅ Petroleum-based (>50%) |
3824.99.29.00 |
Other chemical products and preparations; other | Fallback for other chemical brazing agents | ✅ Other Chemical Product |
🔍 Key Reminder:
- Chemical Fluxes (solid powder/paste based on salts) usually go to 3824 or 3811.
- Oil-Based Lubricants (liquid/paste based on mineral oil) usually go to 3403 or 3811.90.
- Do not assume all "lubricants" are the same. The base ingredient (Oil vs. Chemical Salt) dictates the HS Code.
💰 III. 2026 Latest Tariff Rate Breakdown (Including Additional Taxes & Policy Surcharges)
✅ Applicable Country: USA (US)
✅ Origin: China (CN)
✅ Effective Date: 2025/2026 (Subject to Section 301 & IEEPA updates)
🎯 1. 3811.19.00.00 — Prepared Additives (Non-Petroleum Based)
| Item | Content |
|---|---|
| Base Tariff Rate | 6.5% (Ad Valorem) |
| Section 301 Surcharge | +25% (From USITC Footnote 9903.88.01) |
| Section 122 Tariff | +10% (Specific trade remedy provision) |
| Total Tax Rate | 41.5% |
| Tax Calculation | CIF Value × 41.5% |
| De Minimis Exemption | ❌ Not Eligible (Deemed high-risk chemical import) |
| Legal Authority Path | HTSUS:3811.19.00.00 → USITC:Footnote 9903.88.01 → Section 122 |
📌 Explanation:
- The 6.5% is the standard Most Favored Nation (MFN) rate.
- The 25% is the standard Section 301 tariff on Chinese chemical preparations.
- The 10% is an additional specific duty often applied to chemical additives.
- Total: 41.5%. This is a high-duty category.
🎯 2. 3824.99.49.00 — Other Chemical Preparations
| Item | Content |
|---|---|
| Base Tariff Rate | 6.5% |
| Section 301 Surcharge | +25% |
| Section 122 Tariff | +10% |
| Total Tax Rate | 41.5% |
| Tax Calculation | CIF Value × 41.5% |
| De Minimis Exemption | ❌ Not Eligible |
| Legal Authority Path | HTSUS:3824.99.49.00 → USITC:Footnote 9903.88.01 → Section 122 |
📌 Note:
- This code is for chemical mixtures that don't fit specific "lubricant additive" definitions.
- Same high-duty structure as above. Critical for chemical brazing pastes.
🎯 3. 3811.90.00.00 — Other Prepared Additives (Mineral Oil Based)
| Item | Content |
|---|---|
| Base Tariff Rate | 6.5% |
| Section 301 Surcharge | +25% |
| Section 122 Tariff | +10% |
| Total Tax Rate | 41.5% |
| Tax Calculation | CIF Value × 41.5% |
| De Minimis Exemption | ❌ Not Eligible |
| Legal Authority Path | HTSUS:3811.90.00.00 → USITC:Footnote 9903.88.01 → Section 122 |
📌 Note:
- For liquid/semi-solid mineral oil preparations used as additives.
- Same 41.5% total rate.
🎯 4. 3403.19.10.00 — Lubricants Containing 50%-70% Petroleum Oil
| Item | Content |
|---|---|
| Base Tariff Rate | 0.2% (Very low base rate for certain oil preparations) |
| Section 301 Surcharge | +25% |
| Section 122 Tariff | +10% |
| Total Tax Rate | 35.2% |
| Tax Calculation | CIF Value × 35.2% |
| De Minimis Exemption | ❌ Not Eligible |
| Legal Authority Path | HTSUS:3403.19.10.00 → USITC:Footnote 9903.88.01 → Section 122 |
📌 Important:
- This is the lowest duty option among the provided codes.
- Condition: The product MUST contain 50%-70% petroleum oil.
- Risk: If oil content is <50% or >70%, this code is invalid. Misclassification here leads to severe penalties.
🎯 5. 3824.99.29.00 — Other Chemical Products (Fallback)
| Item | Content |
|---|---|
| Base Tariff Rate | 6.5% |
| Section 301 Surcharge | +25% |
| Section 122 Tariff | +10% |
| Total Tax Rate | 41.5% |
| Tax Calculation | CIF Value × 41.5% |
| De Minimis Exemption | ❌ Not Eligible |
| Legal Authority Path | HTSUS:3824.99.29.00 → USITC:Footnote 9903.88.01 → Section 122 |
📌 Note:
- Fallback code for chemical brazing agents that don't fit other specific chemical categories.
- Same 41.5% total rate.
🛠️ IV. Customs Clearance Practical Advice (Battle-Tested Pitfall Guide)
✅ 1. Required Documentation Checklist (Non-negotiable)
| Document | Must Provide | Explanation |
|---|---|---|
| ✅ Technical Data Sheet (TDS) | ✔️ | Must list exact chemical composition (e.g., % of Borax, Fluorides, Petroleum Oil) |
| ✅ Safety Data Sheet (SDS) | ✔️ | Section 3: Composition must match HS Code classification |
| ✅ Product Photos (Clear Labels) | ✔️ | Show packaging, warnings, and batch numbers |
| ✅ Commercial Invoice | ✔️ | Must state "Brazing Lubricant / Flux" and "Made in China" |
| ✅ Bill of Lading | ✔️ | Ensure no conflicts with invoice description |
| ✅ Oil Content Analysis (if using 3403) | ✔️ | Critical for 3403.19.10.00. Must prove 50%-70% petroleum oil content |
✅ 2. Declaration Tips (Key Mantra)
🔥 "Chemical Salt goes to 38, Oil Base goes to 34, Percentages Define the Rate!"
| Scenario | Correct HS Code | Wrong Action |
|---|---|---|
| Chemical Flux (Powder/Paste, Salt-based) | 3824.99.49.00 or 3811.19.00.00 |
Misdeclare as 3403 → Penalty |
| Oil-Based Lubricant (<50% oil) | 3811.19.00.00 or 3824.99.29.00 |
Misdeclare as 3403 → Penalty |
| Oil-Based Lubricant (50%-70% oil) | 3403.19.10.00 |
Misdeclare as 3824 → Overpay tax |
| Oil-Based Lubricant (>70% oil) | Check other 3403 codes | Misdeclare as 3403.19.10.00 → Invalid |
✅ 3. Special Case Handling
| Situation | Handling Advice |
|---|---|
| Proprietary Mix | If composition is secret, provide lab analysis proving oil/chemical ratio |
| Mixed Shipments | Declare each type separately. Do not lump chemical and oil products together |
| Small Samples | Still subject to 41.5% or 35.2%. De Minimis does not apply to chemicals from China |
| Repackaged Goods | Ensure original manufacturer's SDS is available. Repacking does not change HS Code |
🌍 V. Global Market Clearance Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Tariff Rate | Certification Required | Notes |
|---|---|---|---|---|
| 🇺🇸 USA | 3824.99.49.00 / 3403.19.10.00 |
35.2% - 41.5% | SDS, TDS | High Section 301 + 122 |
| 🇨🇳 China | 3824.99 / 3403.19 |
5% - 9% | SDS | Low base tariff |
| 🇪🇺 EU | 3824.99 |
6.5% | REACH Registration | No Section 301 |
| 🇬🇧 UK | 3824.99 |
6.5% | UK REACH | Post-Brexit rules |
| 🇯🇵 Japan | 3824.99 |
6.0% | JIS Standard | Stable rates |
📌 Conclusion:
- USA is the most expensive market due to Section 301 and Section 122 tariffs.
- Chemical vs. Oil classification is critical for duty optimization (35.2% vs 41.5%).
- EU/UK/Japan have no political surcharges, making them more cost-effective for Chinese exports.
📌 VI. Common Errors & Pitfall Guide (Lessons Learned the Hard Way)
❌ Error 1: Declaring a chemical flux as 3403.19.10.00
👉 Consequence: Customs demands oil content proof. If <50%, reclassification → Back taxes + fines.
❌ Error 2: Assuming De Minimis ($800) applies to small samples
👉 Consequence: Chemicals from China are explicitly excluded from De Minimis exemptions. Seizure risk.
❌ Error 3: Vague description "Lubricant" on Invoice
👉 Consequence: Customs holds shipment for 2-4 weeks for lab testing. Demurrage costs skyrocket.
❌ Error 4: Ignoring Section 122 Tariff
👉 Consequence: Underpayment by 10%. Penalties and interest upon audit.
✅ Correct Practice:
"Brazing Flux Paste, Chemical Composition: 40% Borax, 30% Fluoride, 30% Carrier. Made in China. SDS Attached."
🎯 VII. Conclusion: Professional Declaration, Save Time & Money!
🎯 Remember the Mantra:
🔹 "Chemical Salt = 3824/3811 (41.5%), Oil Base = 3403 (35.2%)
🔹 "50%-70% Oil is the Golden Zone for 35.2%
🔹 "No De Minimis for Chemicals from China"
📌 Pro Tip:
If your product is re-exported from Vietnam, Mexico, or Thailand, you may qualify for IEEPA exemptions, lowering rates to 0%-5%.
Recommend Advance Ruling for complex chemical compositions to avoid clearance delays.
📣 Immediate Action:
📞 Contact a licensed customs broker + Provide SDS & TDS + Request HS Code Advance Ruling
🚀 Ensure your brazing lubricants clear smoothly, reduce costs, and maximize profit!
✨ Professional Clearance Starts with Accurate Classification!
💼 Every cent of duty is worth precise calculation!
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.