API 5CT L80 Type 9 Alloy Steel Oilfield Tubing
Seamless alloy steel tubing designed for oil and gas well casing and production, with outside diameter between 215.9 mm and 406.4 mm, meeting API 5CT L80 Type 9 specifications for sour service environments. Classified under HTS 7304.29.61.60 due to its seamless construction from other alloy steel and specific diameter range for drilling applications. Used to line wellbores and protect production zones in challenging drilling conditions.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If made of stainless steel
Stainless steel variants fall under the stainless steel subheading within the same tubing category.
If welded rather than seamless
Welded alloy steel pipes for oil/gas drilling are classified in Chapter 73 heading for welded pipes.
If having outside diameter exceeding 406.4 mm
Larger diameter tubing shifts to the next size category in the HTS structure.
Not sure which classification is right?
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Import Tips & Compliance
• Obtain API 5CT Monogram License and provide mill test certificates (MTC) verifying chemical composition and mechanical properties
• Declare exact outside diameter measurement and alloy steel grade to avoid misclassification into smaller diameter categories
Related Products under HTS 7304.29.61.60
API 5CT P110 Alloy Steel Casing Tubing 9-5/8 Inch
High-strength seamless P110 grade alloy steel tubing with 9-5/8 inch (244.5 mm) outside diameter for deep oil and gas wells. Meets API 5CT standards for premium grade tubing used in high-pressure drilling and production. Falls under HTS 7304.29.61.60 as other alloy steel seamless tubing in the specified diameter range.
16 Inch OD API 5CT C90 Sour Service Alloy Tubing
Seamless C90 grade alloy steel tubing with 16-inch (406.4 mm) outside diameter, optimized for H2S-containing sour gas wells. Provides balanced strength and sulfide stress cracking resistance. HTS 7304.29.61.60 due to alloy steel composition, seamless process, and precise diameter for oil/gas drilling tubing.
13-3/8 Inch API 5CT T95 Alloy Steel Production Tubing
Seamless T95 grade alloy steel tubing with 13-3/8 inch (339.7 mm) OD for oil and gas production strings in corrosive environments. Provides enhanced collapse resistance for thermal recovery wells. HTS 7304.29.61.60 classification reflects its alloy steel composition, seamless manufacture, and diameter specifications for drilling applications.
API 5CT Q125 High-Strength Alloy Steel Tubing 10-3/4 Inch
Ultra-high strength Q125 grade seamless alloy steel tubing, 10-3/4 inch (273 mm) OD for extended reach drilling in ultra-deep wells. Designed for extreme tensile and pressure loads in challenging formations. Classified in HTS 7304.29.61.60 for other alloy steel seamless tubing used in oil/gas drilling within the 215.9-406.4 mm diameter range.