Having a wall thickness less than 12.7 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 exceeding 114.3 mm but less than 190.5 mm: > Having a wall thickness less than 12.7 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 7304.59.80.30
SAE 4130 Seamless Alloy Steel Pipe
A seamless pipe made from 4130 chrome-moly alloy steel with circular cross section, outside diameter of 152.4 mm, and wall thickness of 10 mm. Classified under HTS 7304.59.80.30 due to its alloy steel composition, seamless construction, OD between 114.3-190.5 mm, and thin wall less than 12.7 mm.
AISI 4140 Chrome-Moly Hollow Bar
Seamless hollow profile of 4140 alloy steel used as mechanical tubing, 165 mm OD, 9.5 mm wall thickness. Fits HTS 7304.59.80.30 as 'hollow profiles, seamless, of other alloy steel' with specified circular dimensions and thin wall.
15CDV6 Aerospace Alloy Steel Tube
High-strength seamless tube from 15CDV6 alloy steel for aircraft structures, 140 mm OD, 11 mm wall. Under HTS 7304.59.80.30 for seamless alloy steel tubes with OD 114.3-190.5 mm and wall <12.7 mm.
8630 Alloy Steel Drill Pipe Riser
Seamless 8630 alloy steel riser section for oil drilling, 152 mm OD, 10.2 mm wall thickness. Classifies in HTS 7304.59.80.30 as other seamless alloy steel tubes meeting size criteria.
EN24 Alloy Steel Mechanical Tubing
Seamless EN24 (4340 equivalent) alloy steel tubing for machinery shafts, 178 mm OD, 8 mm wall. HTS 7304.59.80.30 applies to these 'other' circular seamless alloy steel hollow profiles.
HY-80 Alloy Steel Pressure Tube
High-yield HY-80 nickel-chrome-moly alloy steel seamless tube for submarine pressure hulls, 160 mm OD, 11.5 mm wall. Fits HTS 7304.59.80.30 specifications exactly.
300M Alloy Steel Landing Gear Tube
Ultra-high strength 300M (4340 variant) seamless alloy tube for aircraft landing gear struts, 145 mm OD, 9.8 mm wall thickness. HTS 7304.59.80.30 for alloy seamless tubes in size range.
9Cr1Mo Alloy Steel Boiler Tube
Seamless 9Cr-1Mo (P9 grade) alloy steel tube for high-temperature boiler service, 168 mm OD, 10.3 mm wall. Classifies under HTS 7304.59.80.30 as other alloy steel seamless tube.