4-inch Diameter Stainless Steel Welded Tube
Heavy-walled welded stainless steel tube, 4-inch OD with wall thickness over 1.65 mm, suitable for industrial fluid transfer. Falls under HTS 7306.40.50 as a welded, circular stainless steel hollow profile meeting the thickness criterion.
Import Duty Rates by Country of Origin
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 wall thickness less than 1.65 mm
Subheading splits by wall thickness for precise duty application on lighter tubes.
If imported as machinery parts
Tubes specifically shaped for machinery end-use may classify as parts under Chapter 84/85.
If fitted with threaded ends
Tube or pipe fittings with threads move to heading 7307 for connector components.
Not sure which classification is right?
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Import Tips & Compliance
• Include detailed dimensional specs and stainless steel composition in commercial invoice
• Ensure welding process (e.g
• TIG or ERW) complies with ASTM standards for tariff eligibility
Related Products under HTS 7306.40.50
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Duplex Stainless Steel Welded Pipe 4-inch
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6-inch Stainless Steel Pipe for Structural Use
Large-diameter welded stainless steel pipe with 1.65 mm+ wall thickness, used in construction railings and frameworks. Classified in 7306.40.50 for welded circular stainless steel tubes meeting thickness specs.