Alloy Steel Pressure Piping for Oil Refineries 220mm OD 22mm WT
Seamless circular alloy steel tube with 220 mm OD and 22 mm wall thickness, used in high-pressure process lines for petroleum refineries. Classified under HTS 7304.59.80.55 for its alloy steel composition, seamless form, OD between 190.5-285.8 mm, and thick walls suited for extreme conditions.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If of iron or non-alloy steel
Changes to 7304.51 for non-alloy steel, as alloy content determines the specific subheading.
If threaded or fitted with connectors
Tube fittings or threaded ends move it to 7307 as fittings, not plain tubes.
If parts of refinery machinery
If imported specifically as petrochemical plant parts, may fall under machinery Chapter 84/85.
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Import Tips & Compliance
• Obtain API or ASTM certifications to prove pressure rating compliance and avoid reclassification
• Declare exact dimensions and steel grade; pitfalls include incorrect OD measurement leading to wrong subheading
• For refinery use, note any special coatings but ensure they don't alter tube classification
Related Products under HTS 7304.59.80.55
Seamless Alloy Steel Boiler Tube 250mm OD 25mm WT
A seamless tube made from alloy steel with a circular cross-section, outside diameter of 250 mm, and wall thickness of 25 mm, designed for high-pressure boiler applications. It falls under HTS 7304.59.80.55 due to its seamless construction, alloy steel material, specified OD range (190.5-285.8 mm), and thick wall of 19 mm or more. These tubes are critical for heat exchangers in power plants.
Alloy Steel Heat Exchanger Tube 200mm OD 20mm WT
Seamless alloy steel tube with 200 mm OD and 20 mm wall thickness, optimized for heat exchanger shells in industrial HVAC systems. Fits HTS 7304.59.80.55 as a seamless, circular, other alloy steel tube with OD 190.5-285.8 mm and thick walls.
High-Pressure Gas Line Seamless Alloy Pipe 260mm OD 28mm WT
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Heavy Duty Seamless Alloy Steel Cylinder Barrel 230mm OD 26mm WT
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Alloy Steel Injection Molding Machine Barrel 195mm OD 19.5mm WT
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