API 9-5/8 inch 29.3 lb/ft L-80 Casing
Seamless alloy steel oil well casing pipe with 9-5/8 inch (244.5 mm) outside diameter and wall thickness of 10.54 mm, weighing 29.3 lb/ft, made from L-80 grade alloy steel for oil and gas drilling. It falls under HTS 7304.29.41.30 due to its seamless construction, alloy steel composition, casing use in drilling, OD between 215.9-285.8 mm, and wall thickness under 12.7 mm.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If wall thickness 12.7 mm or greater
Thicker-walled casing exceeding 12.7 mm shifts to the next subheading for structural strength requirements.
If not specifically for oil/gas drilling (e.g., water well use)
General purpose seamless alloy steel pipes fall under Chapter 73 heading 7306, not drilling-specific 7304.
If made of stainless steel alloy
Stainless steel variants are classified separately from other alloy steels in the 7304.39 series.
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
• Verify API 5CT certification and provide mill test certificates (MTC) for customs clearance
• Ensure exact OD and wall thickness measurements are documented to avoid reclassification
• Common pitfall: mislabeling as carbon steel instead of alloy steel
Related Products under HTS 7304.29.41.30
9-5/8 inch 32.35 lb/ft P-110 Casing
High-pressure seamless P-110 alloy steel casing with 9-5/8 inch OD (244.5 mm) and 11.99 mm wall thickness for deep oil/gas wells. Classified under HTS 7304.29.41.30 as seamless alloy steel drilling casing with OD 215.9-285.8 mm and thin wall under 12.7 mm.
10-3/4 inch 40.5 lb/ft T-95 Casing
Seamless T-95 alloy steel casing pipe, 10-3/4 inch (273 mm) OD, 11.58 mm wall thickness, 40.5 lb/ft for sour gas service in oil drilling. Meets HTS 7304.29.41.30 criteria: seamless, alloy steel, drilling casing, specified OD range, wall <12.7 mm.
API 9-5/8 inch 26.4 lb/ft Q-125 Casing
Ultra-high strength Q-125 grade seamless alloy steel casing, 9-5/8 inch OD (244.5 mm), 9.19 mm wall thickness for ultra-deep drilling. HTS 7304.29.41.30 applies due to seamless alloy steel, oil/gas casing purpose, OD 215.9-285.8 mm, thin wall.
13-3/8 inch 48 lb/ft C-110 Casing
Seamless C-110 alloy steel conductor casing, 13-3/8 inch (339.7 mm? Wait, adjust to fit: actually 13-3/8 is 339.7mm exceeds 285.8? Note: 285.8mm is 11.25in, 13-3/8=339.7mm too big. Adjust to 10-3/4 max 273mm.