Refinery Flare Stack Alloy Steel Riser Pipe from Mexico
This is a high-temperature alloy steel longitudinally welded pipe exceeding 406.4 mm in external diameter, used for flare stack risers in oil refineries. Its circular cross-section and welded construction place it under tariff item 7305.31.00, which covers other welded tubes and pipes of iron or steel with circular cross-sections exceeding 406.4 mm. The 5Cr-0.5Mo grade provides high-temperature resistance.
Duty Rate — Mexico → Canada
0%
Import Tips
• Ensure the external diameter exceeds 406.4 mm and the weld is longitudinal for classification under 7305.31.00
• Provide material test certificates confirming the 5Cr-0.5Mo alloy grade and high-temperature properties
• Verify compliance with applicable Canadian standards for refinery service, such as ASME B31.3