Thick-Wall Seamless Structural Steel Pipe
Seamless nonalloy steel pipe for structural columns, 165.1 mm OD with 24 mm wall thickness, used in heavy construction frameworks. Provides superior load-bearing capacity due to thick walls. HTS 7304.39.0044 applies for seamless iron/nonalloy steel tubes of circular section, OD 114.3-190.5 mm, wall ≥19 mm.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If cut/bent to specific lengths as structures
Fabricated pipes/bars for structures classify under 7308 if worked beyond simple cutting.
If non-circular cross section
Square/rectangular seamless profiles use 7304.2x regardless of wall thickness.
If welded
Welded structural pipes of nonalloy steel fall under 7306.69 for other welded tubes.
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Import Tips & Compliance
• Structural end-use affidavits prevent classification as OCTG; include engineering drawings
• Wall thickness gauging mandatory; under 19 mm shifts to 7304.39.0042
• Avoid bulk packaging mimicking line pipe to prevent duty evasion claims
Related Products under HTS 7304.39.00.44
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API 5L Grade B Seamless Line Pipe
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Heavy Wall Seamless Boiler Tube
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High-Pressure Seamless Hydraulic Cylinder Tube
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Seamless Pressure Piping for Refineries
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Extra Heavy Seamless Steel Casing
Seamless nonalloy steel casing for structural piling, 159 mm OD and 20 mm wall thickness for foundation support in construction. Thick walls provide exceptional collapse resistance. Classifies under HTS 7304.39.0044 as seamless circular iron/nonalloy steel tube with OD 114.3-190.5 mm and ≥19 mm wall.