Having an outside diameter less than 38.1 mm
Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: > Other, of circular cross section, of other alloy steel: > Other: > Other: > Other: > Other > Having an outside diameter less than 38.1 mm
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
Products classified under HTS 7304.59.80.10
Seamless Alloy Steel Hypodermic Tubing
Precision seamless tubes of alloy steel with outside diameter under 38.1 mm, used in manufacturing hypodermic needles for medical syringes. Classified under HTS 7304.59.80.10 due to seamless construction, circular cross-section, alloy steel material, and small diameter specification. These tubes meet the chapter definition of seamless hollow profiles.
Alloy Steel Capillary Tubing for Instrumentation
Small-diameter seamless alloy steel tubes (OD <38.1 mm) used in pressure gauges and sensors for industrial instrumentation. Falls under HTS 7304.59.80.10 as seamless, circular cross-section hollow profiles of other alloy steel with specified small diameter.
Seamless 4130 Alloy Steel Tubing for Aerospace
High-strength seamless tubes of 4130 chromoly alloy steel, OD less than 38.1 mm, used in aircraft hydraulic lines and structural components. Classified in 7304.59.80.10 for seamless alloy steel pipes of circular section and small diameter.
Small Diameter Alloy Steel Boiler Tubes
Seamless alloy steel tubes (OD <38.1 mm) designed for high-pressure boiler applications in power plants. Meets HTS 7304.59.80.10 criteria: seamless, circular, other alloy steel, small diameter.
Chromoly 4140 Seamless Hydraulic Tubing
Seamless 4140 alloy steel tubing with OD under 38.1 mm for hydraulic cylinders in heavy machinery. Classified under HTS 7304.59.80.10 as other seamless alloy steel tubes of small circular diameter.
Alloy Steel Seamless Needle Tubing
Ultra-precise seamless alloy steel tubes (OD <38.1 mm) for knitting machine needles and precision instruments. Fits HTS 7304.59.80.10: seamless circular hollow profiles of other alloy steel, small diameter.
Grade 4340 Small Diameter Seamless Tubing
High-tensile 4340 alloy steel seamless tubes under 38.1 mm OD for automotive roll cages and suspension components. Classified HTS 7304.59.80.10 for other alloy steel seamless pipes.
Seamless Alloy Steel Condenser Tubing
Corrosion-resistant seamless alloy steel tubes (OD <38.1 mm) for heat exchanger condensers in HVAC systems. Meets 7304.59.80.10 as small diameter seamless alloy steel circular tubes.
Precision Alloy Steel Seamless Gun Barrel Blanks
Seamless alloy steel tubes (OD <38.1 mm) serving as blanks for rifle gun barrels, requiring rifling post-import. Classified under HTS 7304.59.80.10 for small diameter seamless alloy steel pipes.