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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If designated as tubing rather than casing
Oil/gas tubing (vs casing) uses 7304.24.20 subheading, even identical specs, based on drilling end-use distinction.
If supplied as semi-finished hollow profiles
Unfinished seamless stainless steel hollow sections for further processing classify under Chapter 72 as semi-manufactures.
If for industrial high-pressure applications outside drilling
If not specifically for oil/gas drilling, stainless tubes shift to 7307.19 for other mechanical tubing uses.
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
• Obtain manufacturer's declaration of seamless process; comply with Buy America for US projects
• Avoid pitfall: confusing with tubing (different pressure ratings)—specify 'casing' use in docs
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.
9-5/8 Inch TP304 Stainless Oil Casing
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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.