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

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳ChinaFree+35.0%35%
🇲🇽MexicoFree+10.0%10%
🇨🇦CanadaFree+10.0%10%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+10.0%10%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

7304.41.30Lower: 17.5% vs 35%

If Schedule 80 seamless

Heavy seamless pipes for pressure service use 7304 cold-finished.

7307.19.90Higher: 41.2% vs 35%

If with mechanical joints

Pipes with flanges or couplings become fittings under 7307.

7306.40.10Same rate: 35%

If Schedule 40 or 10S thinner walls

Lighter schedules fall under the thin-wall subheading.

Not sure which classification is right?

Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.

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

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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

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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.

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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.