Sour Service Alloy LSAW Gas Line Pipe
Sour Service Alloy LSAW Gas Line Pipe is an alloy steel longitudinally submerged arc welded pipe engineered for sour (H2S-containing) gas service, with an external diameter exceeding 16 inches (406.4 mm). It features a PSB-resistant microstructure per API 5L Annex H and is used in petrochemical gathering lines. This product is classified under 7305.11.00 as line pipe for gas pipelines.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | +50.0% | 50% |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the pipe is welded by a method other than longitudinal submerged arc welding
Other welded line pipe with external diameter over 406.4 mm falls under this code.
If the pipe is seamless
Seamless line pipe for oil or gas pipelines is classified under heading 7304.
If the external diameter is 406.4 mm or less
Smaller diameter welded pipe falls under heading 7306.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Ensure the pipe meets API 5L Annex H specifications for sour service and provide the CBSA with the relevant test certificates
• Verify the external diameter exceeds 406.4 mm
• Confirm the alloy composition to support classification under 7305.11.00
Related Products under Tariff item 7305.11.00
16-inch API 5L X42 LSAW Oil Pipeline Section
This is an LSAW pipe section with a 16-inch (406.4 mm) external diameter, made from API 5L X42 grade non-alloy steel, used in sectional assembly for offshore oil gathering lines. It is at the lower end of the size range but still exceeds the 406.4 mm threshold. The longitudinal submerged arc welding ensures high-quality welds for oil pipeline applications.
16-Inch OD LSAW Crude Oil Pipe
This is a 16-inch outer diameter longitudinally submerged arc welded (LSAW) pipe made of nonalloy steel, designed for crude oil gathering lines. Its external diameter exceeds 406.4 mm, and it features a circular cross-section, meeting the specifications for line pipe used in oil pipelines. The submerged arc welding process ensures high weld quality suitable for large-diameter applications.
18-inch LSAW Carbon Steel Oil Transmission Pipe
This is a heavy-duty LSAW carbon steel pipe with an 18-inch (457 mm) external diameter for long-distance crude oil transmission, featuring thick walls for pressure resistance. It is made from nonalloy steel and exceeds 406.4 mm in diameter. The longitudinal submerged arc welding ensures a robust structure for high-pressure oil pipelines.
19-inch Carbon Steel LSAW Pipeline Pipe
This is a 19-inch (482.6 mm) external diameter LSAW carbon steel pipe engineered for oil and gas gathering lines in remote fields. It is made from nonalloy steel and exceeds 406.4 mm in diameter. The longitudinal submerged arc welding ensures high-quality welds for reliable pipeline performance.
20-inch API 5L Grade B LSAW Gas Pipeline Pipe
This is a longitudinally submerged arc welded pipe with a 20-inch (508 mm) external diameter, made from non-alloy steel API 5L Grade B, optimized for natural gas distribution pipelines. It exceeds 406.4 mm in diameter and features high yield strength. The longitudinal welding method ensures structural integrity for gas pipeline applications.
22-inch Non-Alloy LSAW Natural Gas Line Pipe
This is a robust 22-inch (558.8 mm) diameter LSAW pipe of non-alloy steel for underground natural gas mains, built to withstand corrosive environments. It exceeds 406.4 mm in diameter and is designed for gas pipeline service. The longitudinal submerged arc welding ensures durability for long-term burial.