Heat Exchanger Seamless Tube 22mm OD
Thin wall seamless carbon steel tube (22mm OD, 2mm wall) for shell-and-tube heat exchanger construction. Falls under HTS 7304.39.0020 as other seamless nonalloy steel tubes <38.1mm OD, U-bend capable for exchanger tube bundles. ASTM A179 carbon steel grade standard.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If alloy steel heat exchanger tubes
SA213 T11/T22 alloy tubes for higher temperature service use alloy heading.
If complete heat exchanger
Assembled exchangers with headers, tubes, and baffles classify as heat exchange units.
If welded heat exchanger tubing
Lower pressure exchangers often use welded carbon steel tubing.
Not sure which classification is right?
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Import Tips & Compliance
• Specify finned or plain tube; fins may trigger 'articles of iron/steel' classification
• Document U-bend radius capability (min 3x OD) for exchanger application
• Confirm leak test results (100% eddy current) per TEMA standards
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