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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)
Products classified under Tariff item 7304.4
15-5 PH Stainless Steel Seamless Guidewire Tubing 1.2mm OD
Precipitation-hardening 15-5 PH stainless steel cold-rolled tubing at 1.2 mm outside diameter, used for cardiovascular guidewires. The small-diameter seamless tube is cold-formed to precise tolerances for medical applications. This product falls under 7304.41.00 as a seamless stainless steel tube, cold-rolled, of circular cross-section.
7304.41.0017-4 PH Stainless Precision Tubing 16mm OD
Seamless stainless steel tubing in precipitation-hardened 17-4 PH grade, cold-drawn to a 16 mm outside diameter for aerospace hydraulic lines. Its circular cross-section, stainless composition, and cold-working process place it under tariff item 7304.41.00.
7304.41.0017-4 PH Stainless Steel Seamless Instrumentation Tubing 3mm OD
Cold-drawn precipitation-hardening 17-4 PH stainless steel tubing, 3 mm outside diameter, for high-pressure sensors and gauges in aerospace applications. The seamless tube is cold-formed to precise specifications. This product is classified under 7304.41.00 as a seamless stainless steel tube, cold-drawn, of circular cross-section.
7304.41.0017-7 PH Stainless Precision Tubing 2.9mm OD
17-7 PH stainless steel cold-drawn seamless tubing, 2.9 mm outside diameter, for aerospace instrumentation and springs. The precipitation-hardening grade offers high strength and corrosion resistance. This product falls under 7304.41.00 as a seamless stainless steel tube, cold-drawn, of circular cross-section.
7304.41.0025-6MO Cold-Drawn Tube
Seamless cold-drawn tube made from 25-6MO super austenitic stainless steel, containing 19-21% nickel and high molybdenum for exceptional resistance to chlorides and pitting. With an outer diameter under 19 mm, this circular cross-section tube is produced by cold drawing, which enhances its mechanical properties and surface finish. It falls under tariff item 7304.41.00 as a cold-drawn seamless tube of stainless steel.
7304.41.00304L Stainless Steel Cold-Reduced Tubing for Catheters 2mm OD
Low-carbon 304L stainless steel seamless tubing, cold-reduced to 2 mm outside diameter, for flexible medical catheters. The cold-reduced process provides precise tolerances and flexibility for medical applications. This product is classified under 7304.41.00 as a seamless stainless steel tube, cold-rolled, of circular cross-section.
7304.41.00304L Stainless Steel Cold-Rolled Condenser Tubing 14mm OD
Seamless 304L stainless steel tubing, cold-rolled to a 14 mm outside diameter, used in heat exchanger condensers. The low-carbon grade offers corrosion resistance, and the cold-reduced circular form matches the tariff item's scope.
7304.41.00304 Stainless Steel Cold-Drawn Tubing for HPLC Columns 0.8mm OD
Ultra-precise 304 stainless steel seamless cold-drawn tubing, 0.8 mm outside diameter, for high-performance liquid chromatography (HPLC) columns. The small-diameter tube is cold-drawn to exacting tolerances for laboratory applications. This product is classified under 7304.41.00 as a seamless stainless steel tube, cold-drawn, of circular cross-section.
7304.41.00304 Stainless Steel Cold-Rolled Capillary Tube 8mm OD
Seamless capillary tubing of 304 stainless steel, cold-rolled to an 8 mm outside diameter, for laboratory instruments and gas chromatography. Its small circular cross-section and cold-worked seamless construction fall under this tariff item.
7304.41.00304 Stainless Steel Cold-Rolled Tubing for Endoscopes 1.9mm OD
Flexible 304 stainless steel seamless cold-rolled tubing, 1.9 mm outside diameter, for endoscope insertion tubes. The thin walls and cold-rolled process provide flexibility for medical applications. This product falls under 7304.41.00 as a seamless stainless steel tube, cold-rolled, of circular cross-section.
7304.41.00304 Stainless Steel Microbore Tubing 4mm OD
Ultra-precise cold-rolled seamless 304 stainless steel microbore tubing with a 4 mm outside diameter, for HPLC systems and micro-fluidics. The small circular cross-section and cold-worked seamless form align with tariff item 7304.41.00.
7304.41.00316L Stainless Steel Instrumentation Tubing 15mm OD
Cold-drawn seamless 316L stainless steel tubing with a 15 mm external diameter, for instrumentation and control systems in oil and gas. The circular cross-section, stainless composition, and cold-drawn process place it under this tariff item.
7304.41.00316 Stainless Steel Cold-Finished Guide Tube 10mm OD
Cold-finished seamless 316 stainless steel guide tubing with a 10 mm outside diameter, for automation and robotic actuators. Its seamless, circular, cold-reduced stainless construction matches tariff item 7304.41.00.
7304.41.00321 Stainless Steel Cold-Drawn Pressure Tubing 18mm OD
Seamless cold-drawn 321 stainless steel pressure tubing with an 18 mm external diameter, for hydraulic systems. The circular cross-section, stainless composition, and cold-drawn process align with tariff item 7304.41.00.
7304.41.00904L High-Nickel Tubing
Cold-rolled seamless tubing manufactured from 904L high-nickel stainless steel, containing 23-28% nickel, with a circular cross-section under 19 mm. This tubing is produced through cold rolling to achieve tight dimensional tolerances and a smooth surface, making it suitable for pharmaceutical piping systems. It qualifies under tariff item 7304.41.00 as a cold-rolled seamless tube of stainless steel.
7304.41.00AL-6XN Cold-Rolled Tubing
Seamless cold-rolled tubing made from AL-6XN super austenitic stainless steel, with 20.5-23.5% nickel, designed for desalination plants. The tube has a circular cross-section with an outer diameter under 19 mm and is produced by cold rolling to enhance strength and corrosion resistance. It is classified under tariff item 7304.41.00 as a cold-rolled seamless tube of stainless steel.
7304.41.00Alloy 20 Seamless Cold-Drawn Tubing
Seamless cold-drawn tubing made from Alloy 20 (Carpenter 20Cb-3), containing 32-38% nickel, for use in sulfuric acid environments. The tube has a circular cross-section and an external diameter under 19 mm, produced by cold drawing for precise dimensions. It falls under tariff item 7304.41.00 as a cold-drawn seamless tube of stainless steel.
7304.41.00Alloy 33 Cold-Drawn Tubing
Cold-drawn seamless tubing made from Alloy 33, a high-nickel stainless steel with 30-35% nickel, used in bleach production. The tube has a circular cross-section and an outer diameter under 19 mm, produced by cold drawing for enhanced corrosion resistance. It is classified under tariff item 7304.41.00 as a cold-drawn seamless tube of stainless steel.
7304.41.00ASTM A312 TP316Ti Boiler Service Tube
Cold-drawn seamless TP316Ti tube per ASTM A312, 11 mm outside diameter, titanium-stabilized for boiler components resisting pitting in chloride environments. Its seamless, cold-drawn, circular stainless construction falls under tariff item 7304.41.00.
7304.41.00Cold-Drawn 316L Stainless Steel Boiler Tube
Seamless cold-drawn tube made from 316L stainless steel with a 14 mm external diameter, designed for high-pressure steam boilers. The cold-drawn, seamless, circular stainless construction meets the tariff item's definition.
7304.41.00Cold-Drawn 316 Stainless Steel Hypodermic Tubing 12mm OD
Seamless cold-drawn tubing made from 316 stainless steel with a 12 mm external diameter, used in medical needles and syringes. The circular cross-section, stainless grade, and cold-drawn seamless construction fall under this tariff item.
7304.41.00Cold-Drawn 321 Stainless Steel Condenser Tube
Seamless cold-drawn 321 stainless steel tube, 16 mm outside diameter, for surface condensers in steam turbines. The titanium-stabilized grade resists intergranular corrosion, and the cold-drawn circular seamless form falls under this tariff item.
7304.41.00Cold-Formed 253MA Stainless Furnace Tube
Seamless cold-formed 253MA high-temperature stainless tube, 12 mm outside diameter, for pyrolysis furnace coils. The rare earth-stabilized grade offers oxidation resistance, and the cold-formed circular seamless construction matches tariff item 7304.41.00.
7304.41.00Cold-Reduced 17-4PH Stainless Feedwater Heater Tube
Seamless cold-reduced 17-4PH precipitation-hardening stainless tube, 13 mm outside diameter, for feedwater heaters in thermal power plants. The cold-reduced circular seamless form and stainless composition place it under this tariff item.
7304.41.00Cold-Rolled 304 Stainless Steel Capillary Tubing 1.5mm OD
Precision cold-rolled seamless 304 stainless steel tubing with 1.5 mm external diameter, ideal for chromatography columns and instrumentation. The cold-rolled process provides a smooth surface and precise dimensions. This product falls under 7304.41.00 as a seamless stainless steel tube, cold-rolled, of circular cross-section.
7304.41.00Cold-Rolled 304 Stainless Steel Superheater Tube
Seamless cold-rolled tube of 304 stainless steel, 12.7 mm outside diameter, for superheater sections in power plant boilers. The cold-rolled circular seamless construction and stainless grade fall under tariff item 7304.41.00.
7304.41.00Custom 825 Age-Hardened Tube
Cold-drawn seamless tube made from Custom 825, a precipitation-hardened high-nickel alloy, with a circular cross-section under 19 mm for oilfield downhole use. The tube is produced by cold drawing to achieve high strength and corrosion resistance in harsh environments. It qualifies under tariff item 7304.41.00 as a cold-drawn seamless tube of stainless steel.
7304.41.00Duplex 2205 Stainless Condenser Service Tube
Cold-drawn duplex 2205 (UNS S31803) seamless tube, 14.5 mm outside diameter, for seawater-cooled condensers. The ferritic-austenitic structure offers high strength and pitting resistance, and the cold-drawn circular seamless form matches this tariff item.
7304.41.00Hastelloy C-276 Cold-Rolled Pipe
Seamless cold-rolled pipe made from Hastelloy C-276, a superalloy with 44-57% nickel and 15-17% molybdenum, for sour gas and seawater applications. The pipe has a circular cross-section with an outer diameter under 19 mm and is produced by cold rolling for superior corrosion resistance. It is classified under tariff item 7304.41.00 as a cold-rolled seamless tube of stainless steel.
7304.41.00Incoloy 800H Heat Exchanger U-Tube
Cold-rolled seamless Incoloy 800H U-tube, 17.5 mm outside diameter, bent into a U-shape for use in tubular heat exchangers in nitric acid plants. The nickel-iron-chromium alloy provides high-temperature corrosion resistance, and the cold-rolling process gives precise dimensions. This product falls under tariff item 7304.41.00 as a seamless stainless steel tube, cold-drawn or cold-rolled, of circular cross-section.
7304.41.00Incoloy 825 Seamless Cold-Drawn Tube
Seamless cold-drawn tube made from Incoloy 825, a high-nickel alloy with 38-46% nickel and 19.5-23.5% chromium, with a circular cross-section under 19 mm. The tube is produced by cold drawing for precise dimensions and excellent corrosion resistance. It falls under tariff item 7304.41.00 as a cold-drawn seamless tube of stainless steel.
7304.41.00Incoloy A-286 Cold-Reduced Pipe
Seamless cold-reduced pipe made from Incoloy A-286, a high-nickel alloy with 24-27% nickel, for turbine engine applications. The pipe has a circular cross-section with an outer diameter under 19 mm and is produced by cold reduction for enhanced mechanical properties. It is classified under tariff item 7304.41.00 as a cold-rolled seamless tube of stainless steel.
7304.41.00Inconel 625 Cold-Drawn Seamless Pipe
Cold-drawn seamless pipe made from Inconel 625, with a minimum of 58% nickel, for aerospace and nuclear applications. The pipe has a circular cross-section with an outer diameter under 19 mm and is produced by cold drawing for high strength and corrosion resistance. It falls under tariff item 7304.41.00 as a cold-drawn seamless tube of stainless steel.
7304.41.00Monel 400 Cold-Reduced Tube
Seamless cold-reduced tube made from Monel 400, containing 63-70% nickel, for marine and hydrocarbon processing. The tube has a circular cross-section with an outer diameter under 19 mm and is produced by cold reduction for superior corrosion resistance. It is classified under tariff item 7304.41.00 as a cold-rolled seamless tube of stainless steel.
7304.41.00Nickel 200 Seamless Cold Tube
Cold-formed seamless tube made from Nickel 200, with 99% nickel content, for electronics applications. The tube has a circular cross-section with an outer diameter under 19 mm and is produced by cold forming for precise dimensions. It falls under tariff item 7304.41.00 as a cold-drawn seamless tube of stainless steel, given its high-nickel composition.
7304.41.00NiCrMo-625 Cold-Formed Pipe
Seamless cold-formed pipe made from NiCrMo-625 alloy, with an outer diameter under 19 mm, for flue gas desulfurization systems. The pipe is produced by cold forming to achieve high corrosion resistance in aggressive environments. It is classified under tariff item 7304.41.00 as a cold-drawn seamless tube of stainless steel.
7304.41.00RA333 High-Nickel Pipe
Cold-rolled seamless pipe made from RA333, a high-nickel alloy with 45-48% nickel, for furnace parts. The pipe has a circular cross-section with an outer diameter under 19 mm and is produced by cold rolling for high-temperature strength. It falls under tariff item 7304.41.00 as a cold-rolled seamless tube of stainless steel.
7304.41.00Sanicro 28 Cold-Drawn Tube
Cold-drawn seamless tube made from Sanicro 28, a high-nickel alloy with 30-34% nickel, for urea plants. The tube has a circular cross-section with an outer diameter under 19 mm and is produced by cold drawing for excellent corrosion resistance. It is classified under tariff item 7304.41.00 as a cold-drawn seamless tube of stainless steel.
7304.41.00Seamless 310S Stainless Steel Heat Exchanger Tube
Cold-drawn seamless tube in 310S stainless steel, 15 mm external diameter, designed for shell-and-tube heat exchangers in chemical processing plants. The high chromium content provides excellent resistance to carburization and high-temperature oxidation. This product is classified under 7304.41.00 as a seamless stainless steel tube, cold-drawn, of circular cross-section.
7304.41.00TP347H Stainless Steel Refining Furnace Tube
Cold-rolled seamless TP347H stainless steel tube, 18 mm outside diameter, for transfer lines in petroleum refining furnaces. The niobium-stabilized grade resists sensitization and offers creep strength at elevated temperatures. This product is classified under 7304.41.00 as a seamless stainless steel tube, cold-rolled, of circular cross-section.
7304.49.0017-4 PH Stainless Steel Hollow Bar for Aerospace
Precipitation-hardening 17-4 PH stainless steel seamless hollow bar used for aircraft structural components. This hollow bar has a circular cross-section and is designed for high-stress aerospace applications requiring high strength and corrosion resistance. It is classified under tariff item 7304.49.00 as a seamless hollow profile of stainless steel.
7304.49.002205 Duplex Feedwater Heater Tube
Seamless duplex 2205 stainless steel replacement tubes for high-pressure feedwater heaters, offering improved fatigue resistance over 316L. These tubes are of circular cross-section and are classified under tariff item 7304.49.00 as other seamless stainless steel tubes.
7304.49.002209 Super Duplex Seamless Pipe 6-inch
Seamless 2209 super duplex stainless steel pipe, 6-inch NPS, with circular cross-section, designed for desalination plants. Its high pitting resistance (PREN >40) makes it suitable for harsh chloride environments. This product is classified as 'other' seamless stainless steel pipe, not cold-drawn or further worked.
7304.49.0025-6MO Stainless Condenser Service Tube
Seamless 25-6MO (UNS N08925) stainless steel tubes for condenser service in combined cycle plants, optimized for cooling water with chlorides. These tubes are of circular cross-section and are classified under tariff item 7304.49.00 as other seamless stainless steel tubes.
7304.49.00304L Seamless Stainless Pressure Tubing 1-inch
Seamless 304L low-carbon stainless steel pressure tubing, 1-inch OD, with circular cross-section, used in hydraulic pressure systems. The low carbon content improves weldability and corrosion resistance. It falls under 'other' seamless stainless steel tubes, not further worked.
7304.49.00304L Stainless Steel Hollow Bar for Pump Shafts
Low-carbon 304L stainless steel seamless hollow bar with a circular cross-section, designed for pump shaft sleeves. The low carbon content improves weldability, making it suitable for fluid handling applications. It is classified under tariff item 7304.49.00 as a seamless hollow profile of stainless steel.
7304.49.00304 Seamless Stainless Ornamental Pipe 3-inch
Mirror-polished seamless 304 stainless steel pipe, 3-inch schedule 10, with circular cross-section, used for architectural handrails and displays. The decorative finish is applied after the seamless pipe is formed. It is classified as 'other' seamless stainless steel pipe, not further worked.
7304.49.00304 Stainless Seamless Exhaust Tubing 2.5-inch
Seamless 304 stainless steel tubing, 2.5-inch OD, with circular cross-section, used for custom automotive exhaust systems. It offers corrosion resistance and durability for high-temperature applications. This product is classified as 'other' seamless stainless steel pipe for general fabrication.
7304.49.00304 Stainless Steel Seamless Tube 1.5-inch OD
Seamless 304 stainless steel tube with 1.5-inch outer diameter and thin wall, used for structural or fluid transfer in food processing. Its circular cross-section and seamless construction ensure hygiene and strength. It is classified as 'other' seamless stainless steel tube of circular cross-section.
7304.49.00310 Stainless Seamless Furnace Tubing 4-inch
Seamless 310 high-temperature stainless steel tubing, 4-inch, with circular cross-section, used for furnace muffles and thermowells. It offers oxidation resistance up to 2000°F. This product is classified as 'other' seamless stainless steel tubing.
7304.49.00310 Stainless Steel High-Temp Hollow Bar
Heat-resistant 310 stainless steel seamless hollow bar for furnace components, with a circular profile. This grade offers excellent oxidation resistance up to 1100°C, making it suitable for high-temperature applications. It is classified under tariff item 7304.49.00 as a seamless hollow profile of stainless steel.
7304.49.00316 Stainless Steel Hollow Bar for Hydraulic Cylinders
Seamless 316 stainless steel hollow bar with a circular cross-section, used in manufacturing hydraulic cylinder bodies. This grade offers excellent corrosion resistance and strength, making it suitable for hydraulic applications. It is classified under tariff item 7304.49.00 as a seamless hollow profile of stainless steel.
7304.49.00316 Stainless Steel Seamless Pipe 2-inch Schedule 40
Seamless 316 stainless steel pipe, 2-inch nominal diameter, Schedule 40 wall thickness, with circular cross-section, designed for high-corrosion industrial applications. It is classified as 'other' seamless stainless steel pipe, not cold-drawn or further worked.
7304.49.00316Ti Stabilized Seamless Tubing 1/2-inch
Seamless 316Ti titanium-stabilized stainless steel tubing, 1/2-inch, with circular cross-section, used for welding in heat-affected refinery zones. The titanium addition prevents sensitization and improves weldability. It is classified as 'other' seamless stainless steel tubing.
7304.49.00316Ti Stabilized Superheater Pendant Tube
Seamless 316Ti stainless steel pendant tubes for superheater plenums, with titanium stabilization to prevent carbide sensitization. These tubes are of circular cross-section and are classified under tariff item 7304.49.00 as other seamless stainless steel tubes.
7304.49.00321 Stainless Seamless Aerospace Tubing 1-inch
Seamless 321 stainless steel tubing, 1-inch OD, AMS 5645 spec, used for aircraft hydraulic lines. Its circular cross-section and seamless construction provide high strength and corrosion resistance. It is classified as 'other' seamless stainless steel tubing, not specialized.
7304.49.00321 Stainless Steel Stabilized Hollow Bar
Titanium-stabilized 321 stainless steel seamless hollow bar for welded structures in chemical plants. The titanium stabilization prevents carbide precipitation during high-temperature exposure, improving corrosion resistance. It is classified under tariff item 7304.49.00 as a seamless hollow profile of stainless steel.
7304.49.00904L Stainless Refinery Heater Tube
Seamless 904L (N08904) high nickel stainless steel tubes for convection sections of refinery process heaters, with copper-bearing alloy resisting polythionic acid stress corrosion. These tubes are of circular cross-section and are classified under tariff item 7304.49.00 as other seamless stainless steel tubes.
7304.49.00904L Super Austenitic Hollow Bar
Corrosion-resistant 904L super austenitic stainless steel seamless hollow bar for seawater equipment. The high nickel and molybdenum content provides excellent pitting and crevice corrosion resistance. It is classified under tariff item 7304.49.00 as a seamless hollow profile of stainless steel.
7304.49.00AISI 316L Seamless Stainless Steel Boiler Tube
Seamless AISI 316L stainless steel boiler tube with a circular cross-section, designed for high-pressure steam boilers in industrial power plants, meeting ASME SA-213 specifications for elevated temperature service. Classified under tariff item 7304.49.00 as other seamless stainless steel tubes.