Sour Service Alloy LSAW Gas Line Pipe
Alloy steel LSAW pipe engineered for sour (H2S-containing) gas service, with >16-inch OD and PSB-resistant microstructure per API 5L Annex H. Used in petrochemical gathering lines. Fits 7305.11.50.00 as large-diameter alloy LSAW line pipe.
Import Duty Rates by Country of Origin
| Origin Country | MFN Rate | Ch.99 Surcharges | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | +35.0% | 35% |
| 🇲🇽Mexico | Free | +10.0% | 10% |
| 🇨🇦Canada | Free | +10.0% | 10% |
| 🇩🇪Germany | Free | +10.0% | 10% |
| 🇯🇵Japan | Free | +10.0% | 10% |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If for refinery process lines
Pipes integral to refinery equipment classify as parts of static apparatus under different headings.
If of other alloy steel grades
Non-line-pipe specific alloys use general other tubes/pipes subheadings.
If sold as prefabricated pipeline sections
Prefabricated assemblies with bends/fittings become other steel articles.
Not sure which classification is right?
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Import Tips & Compliance
• Include sulfide stress cracking test results to prove sour service design and alloy suitability
• Separate from carbon steel shipments to avoid blending errors in duty calculations
• Utilize HTS Advance for pre-shipment classification rulings to mitigate delays
Related Products under HTS 7305.11.50.00
API 5L Grade X65 LSAW Alloy Steel Line Pipe
This longitudinally submerged arc welded (LSAW) line pipe is made from alloy steel and conforms to API 5L Grade X65 specifications, featuring a circular cross-section with an external diameter exceeding 406.4 mm. It is designed specifically for high-pressure oil and gas pipelines, ensuring strength and durability in demanding subsurface environments. Classified under HTS 7305.11.50.00 due to its alloy steel composition, LSAW construction, and use in oil/gas line pipe applications.
X70 Alloy Steel LSAW Pipeline Tube
High-strength X70 grade alloy steel tube produced via longitudinal submerged arc welding, with external diameter over 16 inches (406.4 mm), tailored for natural gas transmission lines. Its alloy composition provides superior yield strength for deepwater and high-pressure applications. Falls under HTS 7305.11.50.00 as LSAW line pipe of alloy steel for oil/gas pipelines.
ASTM A691 Alloy Steel LSAW Line Pipe
Longitudinally submerged arc welded pipe per ASTM A691 specifications, made from alloy steel grades like 1-1/4Cr, with OD exceeding 406.4 mm for sour gas service in oilfield pipelines. The alloy enhances corrosion resistance in harsh environments. HTS 7305.11.50.00 applies to its LSAW construction and alloy steel line pipe designation.
Grade L485 Alloy Steel LSAW Oil Pipeline
ISO 3183 L485 grade alloy steel pipe, longitudinally submerged arc welded, external diameter 24-48 inches for crude oil trunklines. Provides enhanced toughness for arctic and seismic-prone pipeline routes. Classified in 7305.11.50.00 for alloy LSAW line pipe.
High-Yield X80 LSAW Alloy Line Pipe
X80 high-yield strength alloy steel line pipe, LSAW fabricated with circular cross-section >406.4 mm OD for long-distance gas pipelines. Alloying elements improve fracture toughness for extreme conditions. HTS 7305.11.50.00 due to alloy steel LSAW line pipe specs.