Seamless DHP Copper Heat Exchanger Tubing
Deoxidized high-phosphorus (DHP) seamless refined copper tubes for shell-and-tube heat exchangers. HTS 7411.10.10 for seamless refined copper per legal definitions. Enhanced thermal conductivity for industrial process cooling.
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More Specific Codes
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If with soldered/flared tube ends
Tubes with end fittings or surface working classify under 7412 worked copper tubes.
If pre-bundled for complete heat exchangers
Tube bundles as heat exchanger parts shift to Chapter 84 machinery parts.
If flash-welded longitudinal seams
Any welding disqualifies from seamless, moving to other refined copper tubes.
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Import Tips & Compliance
• Specify ASTM B88 DHP chemistry; provide U-tube bend radius if preformed
• Common error: classifying finned tubes as worked under 7412.10
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