9-5/8 Inch TP304 Stainless Oil Casing
TP304 seamless stainless steel casing pipe, 244.5 mm OD, 8.66 mm wall thickness, corrosion-resistant for sour oil wells. Fits 7304.24.40.30 as stainless casing for drilling, within OD limits and thin-walled.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If outside diameter under 215.9 mm
Smaller OD casings (<215.9 mm) use 7304.24.31 subheading, splitting by size within stainless casing.
If welded longitudinal seam
Welded stainless pipes, even for oilfield, classify under 7306.40 based on manufacturing method.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Certify chemical composition for TP304 grade; include NACE MR0175 for sour service
• Pitfall: Wall thickness gauge variance—submit precise measurements
Related Products under HTS 7304.24.40.30
Stainless Steel Oil Well Casing Pipe 9-5/8 Inch OD
Seamless stainless steel casing pipe with an outside diameter of 244.5 mm and wall thickness of 10.3 mm, designed for lining oil and gas wells during drilling operations. It falls under HTS 7304.24.40.30 due to its seamless construction, stainless steel material, casing use in drilling, OD between 215.9 mm and 285.8 mm, and wall thickness less than 12.7 mm.
API 5CT L80 Stainless Casing 10-3/4 Inch
Seamless L80 grade stainless steel casing with 273 mm OD and 11.0 mm wall thickness for oil well protection and pressure containment. Classified in 7304.24.40.30 as seamless stainless steel casing for drilling, OD 215.9-285.8 mm, thin wall <12.7 mm.
13-3/8 Inch OD Stainless Drill Casing Tube
Seamless stainless steel tube, 339.7 mm OD with 9.2 mm wall, serving as drill casing in oilfield operations to stabilize boreholes. Meets HTS 7304.24.40.30 criteria: seamless stainless casing/tubing for oil/gas drilling, specified OD range, thin wall.
Stainless Steel Surface Casing 10-3/4 Inch
Seamless 316L stainless surface casing, 273 mm OD, 10.5 mm wall, used in upper well sections for conductor stability. Under 7304.24.40.30 for seamless stainless oil/gas casing, OD 215.9-285.8 mm, wall <12.7 mm.