API 5L X65 Alloy Steel Line Pipe
This is a welded alloy steel line pipe conforming to API 5L X65 specifications, designed specifically for high-pressure oil and gas pipelines with an outside diameter of 16 inches (406.4 mm). It falls under HTS 7306.19.51.50 due to its alloy steel composition, welded construction, and diameter exceeding 114.3 mm, optimized for transporting crude oil or natural gas over long distances.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If seamless construction
Seamless alloy steel tubes/pipes for oil/gas fall under Chapter 73 heading 7304, distinct from welded pipes in 7306.
If made of stainless steel
Stainless steel variants of line pipe are classified separately in 7306.19.21 due to specific corrosion-resistant properties.
If outside diameter ≤114.3 mm
Smaller diameter alloy steel line pipes shift to different statistical suffixes within the same heading.
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Import Tips & Compliance
• Verify API 5L certification and provide mill test reports (MTRs) to confirm alloy steel composition and mechanical properties during customs clearance
• Ensure accurate outside diameter measurement documentation, as exceeding 114.3 mm is critical for this subheading; mismeasurement can lead to reclassification
• Comply with Pipeline and Hazardous Materials Safety Administration (PHMSA) regulations for imported line pipe used in U.S. pipelines
Related Products under HTS 7306.19.51.50
16-Inch OD X70 Alloy Steel Gas Pipeline Pipe
A high-strength welded alloy steel pipe with 16-inch outside diameter and X70 grade, used in natural gas transmission pipelines. Classified under HTS 7306.19.51.50 for its alloy steel material, line pipe purpose, welded profile, and large diameter exceeding 114.3 mm.
18-Inch Diameter Alloy Steel Oil Line Pipe
Welded alloy steel pipe with 18-inch (457.2 mm) outside diameter for crude oil gathering lines in offshore fields. It qualifies for HTS 7306.19.51.50 as 'other' line pipe of alloy steel with OD >114.3 mm, not dedicated to smaller diameters or specific subtypes.
20-Inch API 5L PSL2 Alloy Line Pipe
Heavy-wall alloy steel welded pipe, 20-inch OD, meeting API 5L PSL2 standards for sour service gas pipelines. HTS 7306.19.51.50 applies to its large diameter, alloy composition, and designation as line pipe for oil/gas transport.
24-Inch OD High-Yield Alloy Steel Pipeline
Extra-large diameter welded alloy steel pipe with high-yield strength for trunk oil pipelines, OD 24 inches (609.6 mm). Fits HTS 7306.19.51.50 precisely as alloy line pipe exceeding 114.3 mm OD.
12-Inch SCH 80 Alloy Steel Gas Line Pipe
Schedule 80 thick-wall welded alloy steel pipe, 12.75-inch OD (323.85 mm >114.3 mm), for high-pressure gas distribution lines. Classified in HTS 7306.19.51.50 for alloy steel line pipe attributes.
Sour Service Resistant Alloy Line Pipe
Alloy steel welded line pipe (16-inch OD) engineered for H2S sour service in oil/gas, per NACE MR0175. HTS 7306.19.51.50 covers its large diameter and pipeline-specific design.