Welded Nonalloy Steel Heat Exchanger Tube
Welded circular tube from nonalloy steel, wall thickness 1.65 mm or greater, designed for shell-and-tube heat exchangers in industrial processes. Provides efficient heat transfer between fluids under pressure. HTS 7306.30.5010 applies due to welded construction and suitability for heat exchangers.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If of alloy steel
Alloy steel welded tubes for similar uses classify under 7306.40, separate from nonalloy.
If not specifically suitable for listed high-pressure equipment
General welded nonalloy tubes without boiler/heat exchanger suitability fall under other 7306.19 categories.
If seamless construction
Seamless versions of heat exchanger tubes use 7304 heading for seamless pipes/tubes.
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Import Tips & Compliance
• Submit engineering drawings showing heat exchanger application to support tariff classification
• Measure wall thickness precisely; values below 1.65 mm move to 7306.30.30 subheading
• Avoid common pitfall of classifying as drill pipe (7304.22) without pressure/end-use proof
Related Products under HTS 7306.30.50.10
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This welded carbon steel tube with circular cross section and wall thickness over 1.65 mm is specifically designed for use in fire-tube boilers to convey hot gases or water. It meets ASTM A178 standards for low-carbon steel suitable for high-pressure boiler applications. Classified under HTS 7306.30.5010 due to its welded construction and explicit suitability for boilers.
Cold-Drawn Welded Steel Superheater Tube
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ASTM A214 Welded Boiler Economizer Tube
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