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.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If outside diameter exceeds 285.8 mm
Larger diameter casings have separate statistical suffixes for size-specific reporting.
If made of carbon steel rather than alloy
Carbon steel casing omits 'alloy' qualifier, falling under 7304.19 provisions.
If imported pre-assembled with drill bit or tool as parts of drilling machines
Assembled into drilling equipment, it becomes a machine part under Chapter 84.
Not sure which classification is right?
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Import Tips & Compliance
• Include ITP (Inspection Test Plan) and NDT reports for non-destructive testing compliance
• Watch for customs scrutiny on alloy composition exceeding 1.65% manganese threshold
• Pitfall: incomplete hydrostatic test documentation delays clearance
Related Products under HTS 7304.29.41.30
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.
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.