Copper Phosphorus Brazing Paste
Self-fluxing copper-phosphorus brazing paste for copper-nickel heat exchanger tubes, containing 7% phosphorus for fluxing during brazing at 700-850°C. It is a brazing paste of metal with auxiliary material, classifiable under tariff item 3810.10.00.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the product is primarily metal powder without fluxing agents
Powders of copper alloys are classified in Chapter 74 when not prepared as brazing pastes.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Verify the phosphorus content and ensure it is not classified as a separate chemical compound
• Provide a technical data sheet to CBSA to confirm the self-fluxing nature
• Check if the paste requires hazardous goods documentation due to metal powders
Related Products under Tariff item 3810.10.00
Aluminum Brazing Flux Paste
Aluminum brazing flux paste, chloride-free, formulated for torch brazing aluminum heat exchangers in automotive radiators. It contains fluorides that remove the aluminum oxide layer during brazing, qualifying as an auxiliary preparation for soldering or brazing under tariff item 3810.10.00.
Brass Brazing Paste with Silver
Brass brazing paste alloyed with silver, used for plumbing fittings and marine hardware. It consists of metal powders suspended in a flux binder, providing high fluidity for capillary action, and falls under tariff item 3810.10.00 as a brazing paste of metal and other materials.
Citric Acid Stainless Steel Passivation Gel
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Hydrochloric Acid Metal Pickling Solution
Concentrated hydrochloric acid-based solution formulated to remove rust and scale from steel surfaces before painting or galvanizing. It is a pickling preparation specifically for metal surfaces, falling under tariff item 3810.10.00.
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