Schedule 80 Stainless Steel Pipe 3-inch
Extra heavy-duty Schedule 80 welded stainless pipe, 3-inch nominal with wall thickness well over 1.65 mm for high-pressure service. HTS 7306.40.50 perfectly matches thick-walled welded stainless pipe.
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 Schedule 80 seamless
Heavy seamless pipes for pressure service use 7304 cold-finished.
If with mechanical joints
Pipes with flanges or couplings become fittings under 7307.
If Schedule 40 or 10S thinner walls
Lighter schedules fall under the thin-wall subheading.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Schedule 80 designation proves thickness compliance—include pipe charts
• Pressure rating stamps on pipe aid classification verification
• Avoid 'boiler tube' declaration shifting to 7304 or 7307
Related Products under HTS 7306.40.50
316L Stainless Steel Welded Tube 2.5-inch
Corrosion-resistant 316L grade welded stainless tube, 2.5-inch diameter, wall >1.65 mm for marine and chemical applications. HTS 7306.40.50 covers its circular welded stainless profile regardless of alloy grade.
Duplex Stainless Steel Welded Pipe 4-inch
High-strength duplex stainless (e.g., 2205) welded pipe, 4-inch with wall thickness ≥1.65 mm for offshore platforms. Still HTS 7306.40.50 as all stainless steel welded circular tubes qualify.
Schedule 40 Stainless Steel Pipe 2-inch
Welded stainless steel pipe with a 2-inch nominal diameter and wall thickness exceeding 1.65 mm, used in plumbing and structural applications. Classified under HTS 7306.40.50 due to its welded construction, circular cross-section, and stainless steel material with sufficient wall thickness for heavy-duty use.
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.
Stainless Steel Exhaust Tubing 3-inch
Welded 304 stainless steel tubing for automotive exhaust systems, 3-inch diameter with wall thickness ≥1.65 mm for durability. HTS 7306.40.50 applies to its welded, circular stainless construction without regard to specific end-use.
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.