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42mm OD x 20mm Wall Alloy Steel Seamless Pipe

A seamless tube of alloy steel with an outside diameter of 42mm and wall thickness of 20mm, exceeding 12.7mm, used in high-pressure hydraulic systems. It falls under HTS 7304.59.80.25 due to its circular cross-section, seamless construction from alloy steel, and specified dimensions. These pipes are ideal for applications requiring superior strength and corrosion resistance.

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.

7304.31.60Same rate: 35%

If made of stainless steel

Stainless steel seamless pipes are classified under 7304.31, separating them from other alloy steels.

7304.19.10Same rate: 35%

If outside diameter exceeds 114.3mm

Larger diameter seamless tubes fall into different statistical suffixes within the same heading.

7306.50.50Same rate: 35%

If welded rather than seamless

Welded alloy steel pipes shift to Chapter 73 heading 7306, regardless of dimensions.

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

Verify alloy steel composition via mill test certificates to confirm classification under alloy steel headings

Ensure precise measurement documentation for OD (38.1-114.3mm) and wall thickness (>12.7mm) to avoid reclassification

Obtain hydrostatic test reports as common CBP requirement for pressure-rated seamless pipes

Related Products under HTS 7304.59.80.25

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ASME SA-335 Grade P11 seamless alloy steel tube with 50mm OD and 15mm wall thickness for high-temperature boiler service. Classified under HTS 7304.59.80.25 for its seamless alloy steel construction, circular cross-section, and wall thickness over 12.7mm. Commonly used in power plants for superheater and reheater applications.

76mm OD x 18mm Wall P5 Alloy Steel Pipe

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3-inch Schedule 160 Alloy Steel Pipe

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60mm OD x 25mm Wall 9Cr-1Mo Alloy Tube

Grade 91 (9Cr-1Mo-V) seamless alloy tube, 60mm OD x 25mm wall, for advanced supercritical boilers. HTS 7304.59.80.25 classification applies to its heavy wall thickness and alloy steel seamless construction. Critical for next-generation power plant efficiency.

ASTM A519 4140 Seamless Mechanical Tubing

4140 chrome-moly seamless mechanical tubing, 100mm OD x 16mm wall, for machinery shafts and axles. Falls under HTS 7304.59.80.25 as other seamless alloy steel tubes with wall thickness exceeding 12.7mm and OD 38.1-114.3mm. Offers excellent strength for heavy equipment components.