Super-Heater Coil Assembly
Coiled tubing assembly that superheats steam within vapor generating boilers to increase efficiency and energy output. This part is specifically for boilers under heading 8402, hence HTS 8402.90.00.90.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If for laboratory-scale steam apparatus
Machinery parts for lab/test equipment in 8419, not industrial boilers.
If imported as bulk stainless steel bars before coiling
Unfabricated stainless bars for further manufacture classify in Chapter 72.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Provide heat transfer calculations and installation diagrams to substantiate boiler-specific function
• Label with alloy composition (e.g
• Inconel) for accurate material duty assessment
Related Products under HTS 8402.90.00.90
Boiler Safety Valve Mounting Block
Machined steel block with valve seat for mounting ASME safety valves on steam boiler drums. HTS 8402.90.00.90 as critical safety component for pressure vessels.
Boiler Sootblower Lance
Retractable cleaning lance that extends into boiler gas passes to remove soot deposits during operation. Mechanical cleaning part for industrial steam boilers under HTS 8402.90.00.90.
Steam Drum Internals Assembly
Assembly of baffles, separators, and dryers installed inside boiler steam drums to remove moisture from generated steam. Specifically parts for heading 8402 vapor boilers under HTS 8402.90.00.90.
Water Column Mounting Flange
Specialized flange for attaching water level gauge columns to steam boiler drums, ensuring accurate level monitoring. Classifies under HTS 8402.90.00.90 for boiler instrumentation parts.
Boiler Handhole Door Assembly
Small access door assembly for inspecting boiler tubes through hand-sized openings in drum walls. HTS 8402.90.00.90 for water-tube boiler maintenance parts.
Steam Boiler Expansion Joint
Bellows-type expansion joint absorbing thermal movement between boiler sections in high-pressure steam systems. Specific part for HTS 8402.90.00.90 vapor generating boilers.