Other
Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: > Other, of circular cross section, of other alloy steel: > Cold-drawn or cold-rolled (cold-reduced): > 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 7304.51.50
Cold-Drawn 4340 Alloy Steel Hollow Bar
High-strength 4340 alloy steel cold-drawn hollow profile for gun barrels. Seamless circular under 16mm wall, HTS 7304.51.50.
Cold-Reduced Monel 400 Equivalent Steel Tube
Monel 400-like alloy steel seamless cold-reduced tube for marine propulsion. HTS 7304.51.50 classification.
Cold-Drawn 321 Stabilized Stainless Tube
321 stabilized stainless seamless cold-drawn tube for aircraft exhausts. Circular alloy steel HTS 7304.51.50.
Cold-Rolled 347 Stainless Steel Process Tube
347 columbium-stabilized stainless cold-rolled seamless tube for petrochem. HTS 7304.51.50.
Cold-Rolled 316Ti Stabilized Stainless Tube
Titanium-stabilized 316Ti stainless seamless cold-rolled tube for heat exchangers. Circular cross-section under HTS 7304.51.50.
Cold-Drawn 316 Stainless Steel Hydraulic Tube
Seamless cold-drawn tube made from 316 alloy steel with circular cross-section, used in high-pressure hydraulic systems for machinery. It falls under HTS 7304.51.50 as a cold-formed hollow profile of other alloy steel, not further worked beyond cold-rolling. Dimensions typically under 16mm wall thickness to qualify as precise tubing.
Cold-Rolled 4130 Chrome-Moly Precision Tube
Seamless cold-rolled tube from 4130 chromium-molybdenum alloy steel, circular cross-section for aircraft structural components. Classified in HTS 7304.51.50 as 'other' cold-reduced seamless alloy steel tubes, excluding those for boilers or pressure vessels. High strength-to-weight ratio suits aerospace applications.
Cold-Drawn Incoloy 825 Alloy Steel Tube
Seamless cold-drawn tube from Incoloy 825 nickel-iron-chromium alloy steel for sour gas service in oilfield equipment. HTS 7304.51.50 applies to this circular cross-section cold-rolled 'other' alloy steel tube. Exceptional resistance to sulfide stress cracking.
Cold-Rolled 304L Stainless Steel Pressure Tube
Low-carbon 304L stainless steel seamless tube, cold-rolled with circular cross-section for pneumatic pressure lines. Classified HTS 7304.51.50 as other cold-reduced alloy steel tubes. Weld-decorated for leak-free performance.
Cold-Drawn 410 Stainless Steel Shaft Tube
Martensitic 410 stainless steel seamless cold-drawn tube for rotating shafts in pumps. Circular cross-section qualifies under HTS 7304.51.50 as cold-rolled other alloy steel hollow profile. Heat-treatable for hardness.
Cold-Reduced Duplex 2205 Stainless Tube
Duplex 2205 (UNS S31803) stainless steel seamless cold-reduced tube for offshore platforms. HTS 7304.51.50 for circular cold-formed alloy steel tubes. High yield strength resists corrosion fatigue.
Cold-Drawn Hastelloy C-276 Equivalent Alloy Tube
Corrosion-resistant alloy steel tube equivalent to Hastelloy C-276, seamless cold-drawn circular for chemical reactors. HTS 7304.51.50 as other alloy steel cold-rolled tube.
Cold-Drawn 17-4 PH Stainless Steel Capillary Tube
Ultra-precise seamless cold-drawn capillary tubing from 17-4 precipitation hardening stainless alloy steel, circular cross-section for medical instruments. HTS 7304.51.50 covers this as 'other' cold-rolled seamless tubes of alloy steel under 16mm dimension. Tight tolerances enable use in catheters and sensors.
Cold-Reduced 15-5 PH Stainless Steel Instrumentation Tube
Seamless cold-reduced instrumentation-grade tube from 15-5 PH alloy steel, circular cross section for chemical processing plants. Falls under HTS 7304.51.50 as other cold-drawn alloy steel hollow profiles. Corrosion resistance ideal for sensor housings.