Cold-Drawn U-Tube for Heat Exchangers
Seamless cold-formed U-shaped carbon steel tube for removable bundles in process heat exchangers, nonalloy steel with 0.8-2.0 mm wall. Designed for thermal expansion in refining service. 7304.31.60.10 classification for cold-reduced tubes in heat exchangers.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported with attached return bends
Tubes with permanent fittings become tube or pipe fittings.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Document U-bend radius and leg length specs critical for exchanger fit-up
• Certify cleanliness level for process fluid compatibility
Related Products under HTS 7304.31.60.10
Cold-Drawn Evaporator Condenser Tube
Seamless tube for evaporator-condenser circuits in refining distillation columns. Dual duty classification under condensers and refining.
Surface Condenser Carbon Steel Tube
Cold-reduced tube for power plant surface condensers, seamless nonalloy for cooling high-purity steam condensate. Precision ID for insertable spears. 7304.31.60.10 for condenser duty.
Cold-Rolled Superheater Element Tube
Seamless tube elements for pendant superheater assemblies in coal-fired boilers. Cold-formed for shop fabrication. Classified for superheaters.
Process Heater Seamless Tube
Cold-drawn tube for fired process heaters in gas processing plants. Nonalloy steel for general hydrocarbon service. Refining furnace suitable.
Deaerator Heater Tube
Seamless cold-rolled tube bundle for deaerating feedwater heaters. Removes dissolved oxygen from boiler feed. Feedwater heater classification.
Waste Heat Boiler Tube
Cold-formed seamless tubes for HRSG waste heat recovery boilers in gas turbine plants. Circulating cross section for gas-side convection.