API 5CT L80 Type 9 Casing Pipe
Seamless alloy steel casing pipe meeting API 5CT L80 Type 9 specifications, with outside diameter of 340 mm and wall thickness of 15 mm, used to line oil and gas wells. Classified under HTS 7304.29.4160 due to its seamless construction, alloy steel composition, specific OD range (285.8-406.4 mm), and thick wall (≥12.7 mm) for high-pressure drilling environments.
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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 casing falls under 7304.29.10 regardless of wall thickness, separate from other alloy steel.
If wall thickness under 12.7 mm
Thinner wall casing in same OD range classified in 7304.29.4180 statistical suffix.
If welded rather than seamless
Welded alloy steel pipes for oil/gas drilling use different heading 7306 based on manufacturing process.
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Import Tips & Compliance
• Verify API 5CT certification and mill test reports (MTRs) are included in documentation to prove seamless construction and alloy composition
• Ensure outside diameter measurement (285.8-406.4 mm) and wall thickness (≥12.7 mm) are certified to avoid reclassification to thinner wall subheadings
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