Other
Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: > Other, of circular cross section, of stainless steel: > Other
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Effective with respect to entries on or after September 27, 2024, articles the product of China, as provided for in subdivision (b) of U.S. note 31 to this subchapter
Subheadings
Products classified under HTS 7304.49.00
316 Stainless Steel Seamless Pipe 2-inch Schedule 40
A seamless tube of 316 stainless steel with a circular cross-section, 2-inch nominal diameter, and Schedule 40 wall thickness, designed for high-corrosion industrial applications. It falls under HTS 7304.49.00 as a seamless stainless steel pipe not cold-drawn or otherwise worked and not specialized for boilers or oil/gas drilling. The 'other' category covers standard industrial pipes beyond specific exclusions.
Sanitary Seamless Stainless Steel Pipe 3-inch
Seamless 304 stainless pipe, 3-inch diameter, electropolished for dairy/pharma sanitary transfer lines, circular cross section. Classifies under HTS 7304.49.00 as other seamless stainless pipes, prior to fittings or further working. Meets 3A standards for hygiene.
304 Stainless Seamless Exhaust Tubing 2.5-inch
Seamless 304 stainless tubing, 2.5-inch OD, for custom automotive exhaust systems, circular cross section. Under HTS 7304.49.00 as other seamless stainless pipes for general fabrication. Corrosion-resistant alternative to aluminized steel.
316Ti Stabilized Seamless Tubing 1/2-inch
Seamless 316Ti titanium-stabilized stainless tubing, 1/2-inch, for welding in heat-affected refinery zones, circular cross section. HTS 7304.49.00 other seamless stainless. Ti addition prevents sensitization.
321 Stainless Seamless Aerospace Tubing 1-inch
Seamless 321 stainless tubing, 1-inch OD, AMS 5645 spec for aircraft hydraulic lines, circular cross section. HTS 7304.49.00 as other seamless stainless not specialized. Stabilized for weldable airframe use.
310 Stainless Seamless Furnace Tubing 4-inch
Seamless 310 high-temperature stainless tubing, 4-inch, for furnace muffles/thermowells, circular cross section. HTS 7304.49.00 other seamless stainless. Oxidation-resistant to 2000°F.
304 Seamless Stainless Ornamental Pipe 3-inch
Mirror-polished seamless 304 stainless pipe, 3-inch schedule 10, for architectural handrails/displays, circular cross section. HTS 7304.49.00 as other seamless stainless prior to working. Decorative finish applied post-import typical.
304 Stainless Steel Seamless Tube 1.5-inch OD
Seamless 304 stainless steel tube with 1.5-inch outer diameter and thin wall for structural or fluid transfer use in food processing. Classified in HTS 7304.49.00 as 'other' seamless stainless steel tubes/pipes of circular cross section, excluding cold-worked or specialized types. Meets chapter definition for hollow profiles without welds.
Stainless Steel Seamless Hypodermic Tubing 18 Gauge
Precision seamless stainless steel tubing (18 gauge, ~1mm OD) used in medical needles and instruments, with circular cross section. HTS 7304.49.00 applies to such 'other' seamless stainless pipes/tubes not further worked or for boilers. Thin wall and small diameter fit general industrial/medical hollow profiles.
TP321 Stainless Steel Seamless Pipe 4-inch NPS
Seamless TP321 stainless steel pipe, 4-inch nominal pipe size, for high-temperature chemical processing with circular cross section. Falls under HTS 7304.49.00 as other seamless stainless pipes not cold-worked or for specific exclusions like boilers. Ideal for corrosive environments due to stabilized alloy.
Instrument Grade Seamless Stainless Tubing 1/4-inch
Seamless 316L stainless tubing, 1/4-inch OD, for instrumentation and control lines in oil & gas, circular cross section. HTS 7304.49.00 covers this as other seamless stainless hollow profiles not further processed. Precision tolerances suit hydraulic/pneumatic applications.
Duplex 2205 Seamless Stainless Tube 2-inch Sch 10S
Seamless duplex 2205 stainless tube, 2-inch schedule 10S, for offshore platforms with superior corrosion resistance, circular cross section. HTS 7304.49.00 for other seamless stainless hollow profiles not specialized. High strength suits subsea applications.
304L Seamless Stainless Pressure Tubing 1-inch
Seamless 304L low-carbon stainless tubing, 1-inch OD, for hydraulic pressure systems in machinery, circular cross section. Under HTS 7304.49.00 as other seamless stainless tubes not further worked. Weld-free for high-pressure integrity.
Stainless Steel Seamless Condenser Tubing 3/4-inch
Seamless 316 stainless condenser repair tubing, 3/4-inch OD x 20 BWG, circular cross section for HVAC heat exchangers. HTS 7304.49.00 applies to other seamless stainless tubes excluding dedicated boiler stock. U-bend capable but imported straight.
2209 Super Duplex Seamless Pipe 6-inch
Seamless 2209 super duplex stainless pipe, 6-inch NPS, for desalination plants, circular cross section with extreme pitting resistance. HTS 7304.49.00 for other seamless stainless pipes not cold-drawn. PREN >40 for harsh marine use.