Stainless Steel Schedule 10S Pipe 4-inch OD
Schedule 10S stainless steel welded pipe with 114.3 mm outside diameter and 2.77 mm wall thickness, used in HVAC and water systems. Fits HTS 7306.40.50.90 for welded, circular cross-section stainless tubes with wall ≥1.65 mm and OD 114.3-406.4 mm, other category. Provides lighter weight alternative to thicker schedules.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If wall thickness under 1.65 mm
Thinner walls like Schedule 5S fall under 7306.40.51, tariff splits thin vs thick-walled tubes.
If Threaded or socket-welded fittings classification changes to pipe fittings in 7307.
If imported as fabricated articles other than parts
Heavily fabricated stainless steel tubular articles may classify as 'other articles of iron or steel' in 7326.
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Import Tips & Compliance
• Label with schedule designation and confirm wall thickness via caliper or NDT to match tariff specs exactly
• For Schedule 10S, ensure not mistaken for thinner Schedule 5 (under 1.65 mm wall) which would be 7306.40.51
• Provide evidence of ERW (electric resistance welded) process if audited, as it affects 'welded' classification
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