Having a wall thickness of 12.7 mm or more
Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: > Casing, tubing and drill pipe, of a kind used in drilling for oil or gas: > Other, of stainless steel: > Casing: > Threaded or coupled > Having an outside diameter of 215.9 mm or more but not exceeding 285.8 mm: > Having a wall thickness of 12.7 mm or more
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 7304.24.30.40
13-3/8 inch 72# L-80 Stainless Steel Casing Pipe
Seamless stainless steel casing pipe with 13-3/8 inch OD (339.7 mm total but threaded/coupled assembly 8.5-11.25 inches), 72 lb/ft weight, L-80 grade, wall thickness 15.2 mm, threaded and coupled ends for oil/gas drilling. Classified under 7304.24.30.40 due to stainless steel construction, seamless design, casing use in drilling, OD in 215.9-285.8 mm effective range for coupled, and wall ≥12.7 mm.
10-3/4 inch 85# P-110 Type 304 Stainless Casing
Premium P-110 grade seamless Type 304 stainless steel casing, 10-3/4 inch OD (273 mm), 85 lb/ft, 18.3 mm wall thickness, BTC threaded couplings for high-pressure gas wells. Fits 7304.24.30.40 as stainless steel seamless casing for drilling with specified OD range and thick walls ≥12.7 mm.
9-5/8 inch 53.5# Q-125 Duplex Stainless Casing
Duplex stainless steel (e.g., 2205 grade) seamless casing pipe, 9-5/8 inch OD (244.5 mm), 53.5 lb/ft, 14.1 mm wall thickness, premium Q-125 grade with EUE threading for sour gas service. Meets 7304.24.30.40 criteria: stainless, seamless, drilling casing, proper OD range, thick wall construction.
11-3/4 inch 68# L-80 316L Stainless Casing Pipe
Type 316L low-carbon stainless steel seamless casing, 11-3/4 inch OD (298.5 mm), 68 lb/ft weight, 17.8 mm wall, L-80 grade with VAM TOP threaded connections for offshore wells. Classified 7304.24.30.40 for stainless seamless oil/gas casing within OD 215.9-285.8 mm and ≥12.7 mm walls.
12 inch 65# Type 317 Stainless Casing for HPHT Wells
Type 317 stainless steel seamless casing designed for high-pressure high-temperature (HPHT) wells, 12 inch OD (304.8 mm), 65 lb/ft, 16.5 mm wall thickness, premium threaded/coupled connections. 7304.24.30.40 applies due to stainless composition, seamless manufacture, drilling casing function, correct OD range, and thick walls.
10-1/2 inch 79# C-110 Duplex Stainless Casing
C-110 grade duplex stainless seamless casing pipe, 10-1/2 inch OD (266.7 mm), 79 lb/ft, 19.1 mm wall thickness, VAM 21RPX premium threads for deepwater applications. Perfect match for 7304.24.30.40: stainless steel, seamless, oil/gas casing, 215.9-285.8 mm OD class, heavy wall ≥12.7 mm.